Hp tuners maf tuning Timing - this appears to work OK. which of course is Smokeshow's thread. Blended mode is having the maf and ve working by having the dynamic airflow set at 4k enable and 3900 disable for example when under 4k the airflow model will use both maf and ve for fueling calculations and above it will use maf only like for wot fueling - if you just want maf only tune you would set dynamic airflow to 200 high rpm disable 2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93 Car basics - '04 GTO LS1, descreened MAF, ported 243 heads, Comp 227/230 . That said, I've yet to have a car that gains more than five horsepower after going on the dyno for tweaking. 3 LS4 - HP Tuned, MF catback, 1. I would assume the MAF curve will still be the same despite changing cam. 24 only has MAF Hz, so you create a user defined PID for MAF Period by 1000000/[PID. Timing tables are still stock for now. just getting back in the tuning game since im throwing a new Cam in my CTS-V and did it the old school way last time with MAF then disable half the damn OK, need a little assistance. My results for that one seem a little strange to me, below about 6k hz my table is much lower than stock about 10% in the 2k range 15% near 6k but above 6k it is higher about 5% near 6k and 15% in the 8k range. hpl Suggest looking at You Tube video titled LS3 MAF TUNING USING STFT - HP TUNERS by hughesperformancetuning. comCheck out the latest tuni Oct 15, 2015 · 2019 Ford Raptor Tow Rig Scarab 195 Open 250HO 2008 Shelby GT500 VMP Gen II-R (17psi), JLT 123mm CAI, Ford SCJ Monoblade Throttle Body, 56# Injectors, BoostAPumps, VMP triple pass heat exchanger (dual fan), 170* thermostat, BBK long tube headers, Dual resonators, Magnaflow Catback, LC2 Wideband, RXT clutch Finally, I wrote a step by step instruction for myself to follow while tuning for Speed Density. Gained 29. BJK Last edited by 07MontRedcp; 12-19-2011 at 03:12 AM . Output Frequency', then plot the LTFT PID in that histogram. The car is a 98 firebird with a 411 ecu swap. Then open your tune and click on the axis label "period (us)", right click the left cell and paste. Idle + Part throttle tuning - Read Calibration, start the car to reach operating temperature. 3 Silverado 10-04-2019 #11. killer thread BTW. if i wanted to bump up the timing, would i need to go back and re-tune the MAF? i feel this is going to be a "yes" answer but in order to keep from having to tweak this tweak that redo this then tweak again. If im street tuning do i need to follow the steps, by leaving the vehicle in second gear and do the drive cycle the have in the book, or can i just do my normal daily driving and get better results that way? in yalls opinion what is the best way to street tune? Feb 8, 2016 · The axis parameter will be MAF Hz values contained in your Tune file located in the Editor, going to the MAF table. 6 DOHC with 76mm turbo. i was also getting a CEL for p0101, MAF low performance. 1 AFR is commanded. Dec 2, 2023 · Then I decided I wanted more power so I installed a sloppy stage two cam springs and push rods, long tube headers with full 3" x pipe exhaust, cold air intake pipe, HD2 shit kit with the Sonnax valve and a Yukon locker in the rear diff. If you follow the order in the book, you are to disable PE by setting all power enrich enable tps cells to 100% for both hot and cold. I think I have one more run on another day with the VE and it will be perfect, with the changes I just made I should be within +1 - (-2), doing one more just to try and get even closer, if not this is good enough for me. View Profile View Forum Posts I'd honestly just throw the MAF in the tool box and get rid of it, tuning GEN 3 boosted setups with a MAF is just more work. I have the close loop enable-ect vs. 3" Pulley, Autolite 103's K&N CAI, 3" Downpipe: TOG Headers, #39 Cobra Injectors, ZZP Crate motor with CNC Ported Heads, NGK AFX Wideband I have a 2004 Silverado 2500 that I swapped in an ATK HP93 crate engine (460hp/460lbft) at the same time i updated the injectors to 60lb, added an S&B cold air and a Banks monster cat back. It's not maxed but I'm building an lq4 to replace the current boosted 5. It is not a RAW value like MAF. May 29, 2017 · Under the engine diagnostics tab you need to set your maf fail high to 0hz, turn off your PE, DFCO, and COT, and populate a chart of your ve table over ltft or afr error or whatever sensor / math you prefer to tune to. To fix this I need a bump in the MAF curve, now it is no longer smooth! So, first tune the MAF to get it as close as possible, which I believe you have done. I did a lot of readings and decided to try and calibrate my MAF first. 1. Below is a list of of changes needed to tune MAF I researched. Is ikt normal to have the MAF LT + ST trims change daily or every time I drive the car. 5 heads, 228/232 112r cam, Long tubes, and 48lb injectors. 73. The stable tune v19 is extremely lean. The ECU allowed me to tune MAF table at idle and part throttle but it change nothing at wot. He said he tuned it using Speed density. com Step-by-step, table-by-table tuning to develop your base tune - prepare for in-car tuning. I've done some mild/basic MAF massaging and it still runs like poo. I followed the thread on here with pictures. OK I tried the tune the VE with LTFT, but had better luck turning of LTFT and using short terms to dial it in with. hpt Feb 8, 2024 · Email tuning!!!, Mail order, Dyno tuning, Performance Parts, Electric Fan Kits, 4l80e swap harnesses, 6l80 -> 4l80e conversion harnesses, Installs Quick Navigation GM V8 Tuning - Engine, Gas (Gen 3) Top I know for a fact that the maf sensor still works with the 2 bar os because that's the way it's running in my truck right now. I started my WOT MAF tuning via wide band (NGK AFX) and got a couple of second gear 2000 to 4800 rpm runs in tonight and am a little suprised at how much too lean my MAF is. My base was a month ago with just flowmasters. Then input the RPM and Load values from the MAF Correction table (or Copy/Paste from Spreadsheet again) 11. 1 even though the inverse calculator would calculate higher loads for the stock tune. Gen 3 . A rough VE table will be more susceptible to burst knock retard. Back when we started tuning V6's in HP we didn't have access to commanded AFR in Open Loop. If you are using an average value in your Histogram anyway, this would seem to accomplish the same thing, but just be less time consuming. 3610. If you didn't use the PE Enable at 0%, the commanded AFR was a bouncing target making it all but impossible to tune. Infact I have been driving it for weeks without any MAF issues. 572-. I had to turn the maf back on because in speed density there's no way around lean hot restarts and it kept carrying lean values into power MAF / LTFT tuning So most guides go something like this: Disable (Almost completely) power enrichment by some means, reset fuel trims, drive for 30ish minutes while graphing LTFT against MAF Hz. When you are done tuning your VE Table, obviously the numbers are going to be different in the table, but over-all it should still be as smooth Jun 18, 2012 · HP-Unlimited Tuning and Custom Fabrication Houston area performance parts dealer MD800 Mustang Dyno 713-560-3889 Taylor 2016 Camaro A8 "shop car" FIRST 6th GEN CAMARO OVER 200mph IN THE MILE 203. I found this on the web, that I tried to follow; The following is assuming that your fixed variables (IFR, Engine Volume etc. - when tuning for MAF, I have PE turned off - after getting MAF tables worked out, I enable PE and just tune the section where 13. Otherwise you don't know whether you should be adjusting the MAF or VE tables. Once you get the VE tables dialed in, plug the MAF back in. MAF should be logging in g/s, MAT in K etc. MTI built the motor and programmed the computer with Sulski Performance Tuning 2000 WS6 M6 - LS6 (long block, refreshed top end), 10. hpt maf-step2. hpl a few posts above is a closed loop MAF log after rough MAF tuning. May 15, 2023 · So I went ahead and pull 4% from the maf table and i took it a step further and lowered you idle timing adapt in the overspeed area then straightened out the underspeed. 4L manual trans- GM performance CAI, downpipe with AEM OBD2 wideband, Turbosmart LTG BOV with custom adapter, Mamba wastegate, ZZP throttle body spacer for AEM boost pressure gauge, ZZP billet turbo outlet, self tuning The specific video I am referring to is -----MAF Tuning and Scaling, Tuning Series Vol. Well, ive exhausted myself trying to setup a table that plots STFTs against the MAF vs output frequency (Hz) and all I get is a maf table with the cursor correctly hitting the current maf Hz region however NO fuel trim data is logged and all I get is a blank table. I don't remove timing globally for MAF tuning, and you can do them both simultaneously. 5. 4. my fuel curve wasnt pretty, and it was leaning out quite a bit at the end. Tried 2% richer on the MAF and lost HP; tried it 2% leaner and lost HP. I've made several logs during MAF tuning (dynamic air off, steady state disabled, dfco off, cot off, open loop, low octane sparketc) and several with speed density (MAF fail 0, steady state disabled, dfco off, cot off, open loop, low octaneetc) tuning following all of Goat Rope Garage's videos on gen 3 tuning. Dec 13, 2016 · I'm trying to start tuning on my LNF. Since my MAF has IAT built in, my IAT was -34 degrees during the entire VE tuning process. May 29, 2017 · The tuning the right way course comes with an entire book dedicated to gm maf and ve tuning. Attached are the 2 histos I use for both MAF and VVE, along with all the channels for my 2011 E38. Apr 4, 2023 · a pretty log thread on tuning VVE as well as MAF simultaneously. Just driving the car around, it would collect data at each MAF voltage point and average the fuel trim data. is there a preference for tuning? MAF, VVE, TIMING? scenario- ive got the MAF dialed in with the help from GHuggins. 0. This is when I first noticed the sudden change noted above. Aug 2, 2014 · * First, you need to disable the MAF sensor, by disabling the MAF you force the engine to rely upon the VE tables for all fueling calculations (under normal circumstances the VE table is only used during certain fueling calculations, mostly WOT), the easiest way to disable the MAF is to set the MAF fail frequency to 0hz, this leaves the MAF I am tuning a 2004 5. Jul 19, 2018 · The MAF calibration tables are easy enough to log and tune. 5 to +1% where as it was -8 to -14%. 3L A8 - Airaid intake tube, GM Borla catback, L86 Intake/Ported TB Doesn't appear to work very well with HP. I am here to help anyone with starting to learn how to navigate the EEC-V variables like the MAF reading in ADC and all that. Now tune only the MAF table to get the fueling back to the same range. 2004 GTP: 3. After getting a stable drivable tune for my LC9 to L96 swap, I am working on getting the MAF curve dialed in. May 31, 2016 · Hello Hptuners community, let me start out by saying I am fairly new to tuning and been searching the forums for months learning as I go, I have managed a few tunes for my '13 roush stage 3. 0-Step3. It has brand new MAF, O2 sensors, MAP, and plugs. You must have a wideband for tuning, you will only be guessing and pissing in the wind without one. Also keep in mind you typically want to be in MAF only or SD (VE) while tuning. I can start the car and the trims will show pulling avg 5%, drive somewhere shut off the car do whatever I'm doing, return, start the car, drive home and the trims are now 0 to 2% avg adding fuel. Oct 6, 2015 · You have to create a user defined PID for MAF Period. hpl. 5 hp and 28. The car has a 2 bar map sensor which say's its applied. Again, correct on the O2 sensor. With the two tables for commanded AFR in OL, we now don't have to do it that way anymore. Oct 11, 2022 · Im trying to understand how E39A ECU work on LCV engine. 8L SC, XP CAM, 85MM Maf, 105# Springs, 3. And the channels you are logging should match the math's units. I'm just trying to tune the MAF with a light wastegate spring. At least I think I`m pretty close with the VE tuning, so yesterday I started with the MAF tuning. ive been reading it a and trying to wrap my simple mind around it. 6 similar to the stock tune capping at 1. I am a little confused about Open and Closed loop. I am new to all of the tuning world. I have the original E67 LS3 ECU, but the Intake Tubing size is 4OD. All of which I have surge and fuel trim issues. I have seen where one person says to sweep across the Hz and try to fill as much data as you can with smooth transitions. I never see EQ Cmd go over 1, even at idle. Thats what I thought. All you need to do is use the proper math parameter(s) and filters to transform the data into the classic '% error' you're used to, which I will describe here. Now I`m trying to dial in the MAF sensor on my LS 5,3/4L60E setup. Please point out what I'm missing as I'm going to halt my MAF tuning until I figure out what else is still in play. comCheck out the latest tuni The calculated torque in HP Tuners isn't reliable. If not using a MAF (Speed Density), tune the entire operating area of the table. 3, HP Tuners-----1. Just make sure you disable LTFT and it should work fine for you. This winter did a cam swap BTR stage 3, and a 3600 stall converter. HP Tuners LLC; Top; All times are GMT -5. It would be a lot faster to disable LTFT and just use STFT. For WOT tuning, you'll need the wideband for sure. Attached is the log and the current tune that was used for yesterday's drive. However when i fire up and check I get an average of ~ -20 (some higher / some lower) in the EQ err. Is it necessary to disable power enrichment for doing MAF tuning or will the power enrichment eq factor be taken into account in HP TUNERS PRO SUITE. 548 and flash this tune to the car. Settings needed to tune MAF Engine, Fuel, Cutoff DFCO> Disable Enable RPM 1300>change to>8100 Disable RPM 1200>change to>8099 Engine, Either ditch the MAF and run speed density with a 2 or 3 bar OS or purchase a card style MAF and create a larger intake tube for it to sit in. Disable MAF, tune VE. I spent 4 credits already. 08. 45 - 0. (I didn't drive far like this, didn't want to risk damage to the engine). hpl mystocktune-FTDC-turnedoff-MAF-4. IDK what the hell I did. May 11, 2006 · Warning: User exhibits tendency to use offensive amount of smileys 2003 GMC Denali XL HPTuners MVPI Pro | LC-1 Wideband | 1 Bar Speed Density OS | MAF Delete | Corsa Sport Exhaust | Flex-A-Lite 282 E-Fans | Nelson Harness | K&N FIPK | SSBC Truck-Force 10 Calipers | Brembo OE Sized Cross-Drilled Discs | NGK TR55's Aug 14, 2022 · If you feel you have the tune set up correctly, with the MAF turned off, and all the other things turned off, then something is wrong with your W/B O2, or the settings for your W/B O2 within Hp Tuners. Simplest way is to make a histogram using the table 'MAF Airflow vs. I'm slowly working on the tune. Car basics - '04 LS1, descreened MAF, ported 243 heads, Comp 227/230 . LTFT take a lot longer Silverado 2001 4wd rcsb, LS 6. Nov 24, 2023 · New better fuel system and a lot of MAF tuning took care of it. 5FDP. I went thru the ve and lower end maf tuning using the ltft method. 5" single exhaust. 0 from a 2000 truck/suv, 706 heads, TBSS intake, gen3 cable throttle body, BTR REDHOT cam (221/24X, . By following our guide about how to tune maf hp tuners, you can tune your MAF sensor to provide accurate airflow readings, leading to better performance, improved fuel economy, and engine protection. May 22, 2020 · could someone help me out here please, Ive been trying to tune the maf and ve tables and after datalogging and making changes to tables I proceed to get the same information time after time, Obviously I don't have something setup correctly, Ive gone over all steps to shutting off the proper items such as maf frequency fail high and dtcs for the VE tuning process, got my p102 & 103codes along Thats what I thought. During this I also tuned my timing and switched to using only 93 octane pump gas. Hey everyone, I'm running into an issue with trying to tune the MAF on my setup but getting bad data from my histogram. For Dynamic Airflow i've seen to change Steady State, hi/lo rpm thresh to 0. I'd recommend getting a honey comb air straighter before the MAF to keep the flow across the sensor smooth. Those are the only things i have but its only plotting data at 0 htz meaning increasing and decreasing values are there but i know they should be across the histogram. hpt Also, I live in CO, so at 30f, my maf was fluctuating at idle, and it is a newer sensor. Since my mods are not too extensive, Lid, LTs, descreened MAF, I am mostly concerned about tuning the MAF. GM Gen4 Injectors v2. Apr 6, 2007 · If using a MAF sensor, only tune the idle and part throttle areas of the VE table, 4000rpm and below. Jun 1, 2023 · 2011 Crown Vic based platform. Simply drop the Dyn Airflow Disable and reenable values to something less than idle speed to force it to MAF mode. hpt is the tune used in 04 MAF Tuning. 613/. Then I seen where you just set the PE to what you want and adjust the VE or MAF for the fine tuning. How to Tune MAF in stock location: *Set the entire Maf Correction Table to 1's. Then I hand tuned the MAF while doing WOT runs and also when doing some runs including part or heavy throttle runs data. 11s 2018 Sierra SLT 5. Oct 15, 2015 · Multiply the entire MAF Airflow vs. hpt Also you need to go watch some video's (I like Goat Rope Garage) on how to do maf Dynamic has other modifiers. And I think particularly a lot of tuners that come from an aftermarket ECU tuning background where almost always the speed density system is employed, the MAF sensor doesn't get a look in, it's chucked in the bin, these tuners aren't familiar with a mass air flow sensor and it can actually be a little bit daunting considering going and tuning a I did some dyno runs this morning, but not with the new config. I am setting up my editor to start tuning my maf. from what ive gathered, this is a code that gets set when MAF values do not meet coded value for MAP (ie SD). Then your trims will be right on. 65, 8. when i try to up load the tune to bypass the close loop to force to run on maf settings pre (goat rope youtube). If these are active then you skew the results. . Should PE be turned off when tuning the MAF? Just getting into HP tuners. 60 pressure ratio); at 1400 RPM (same pressure ratio) the MAF airflow and dynamic airflow are near equal but the VE airflow is about 4 - 5% higher; in all case my lambda was 1. hpt is the tune used in 03 MAF Tuning. Mar 17, 2019 · Once you log and modify your MAF, log again, and are happy with the results, you can then reflash those changes into your tune again and turn off the settings made to log your MAF in the first place. I set my MAF correction table to all 1's. DSX Tuning - Authorized HP Tuners Dealer The easiest thing you can do is open the stock tune Grim50 posted, go to the MAF transfer, click the axis label "period (us)", highlight all cells and right click/copy. Jul 10, 2010 · First driving impressions with a base tune is that this thing drives like total shit below 3K, especially when cruising in gear. Hello, im trying to get some filters going for road tuning my MAF, but i can't seem to get the result i expect here's the current formula: ( > 10) And ( > 10) And ( > 10) And ( < 5) And ( < 5) And ( > 20) And ( = 0 or = 2 or = 3 or = 4) ( > 10) And ( > 10) And ( > 10) And //Filter out anything under 10% throttle, and a window of 0,5sec before and after it goes over 10% (transients) ( < 5 Jan 27, 2009 · Hello, i recently purchased HP Tuners Pro. Made a few logs and the MAF table seems to be spot on now. I'm gonna do it though on a 2007 3v 4. 07-apr-2023-maftuning-3. Nov 20, 2023 · Im working on tuning my MAF and VE tables covered in the MAF & VE GUIDE book from the tuning school. Log your HZ see where it tops out stock. iat set to 284*. you can technically run the maf post turbo pre y-pipe but it would have to be after any atmospheric blow off valves. Thanks Pistol_91! I had capped to load at 1. - Disable MAF, set PE Enable % to %100, disable COT and DFCO, write calibration. 0 turtorial available I know its not the proper way to MAF tune Jan 9, 2022 · as stated in the title. 5" maf that is rated for 1024 grams/sec. A compromise would be to use MAF below 655 and DYN above as most of the modifiers will not come into play (just a thought). Re-enable both or whichever you prefer. Thanks. Im using an 08 Vette tune and column is RPM and row axis is MAP. Also if you look at the E--Force provided tune required no changes to Engine, Airflow, Dynamic Airflow section. 07 - 1. 2302]. 09-15-2016 #2 Sep 11, 2016 · Turns out, the issue was due to me unplugging the MAF for tuning the VE table. Feb 24, 2016 · Add Fuel Trim Cell ([6310]) to your channel and chart and depending on your setup, and data you want to address generate a filter for a specifc value or a 2 part (AND) for a range. hpl exited SD tuning turned everything back on (2). 03-08-2019 #6 Nov 10, 2009 · I've been searching and went through almost every maf thread. Apr 10, 2024 · 2018 Chevy Cruze 1. JTC Performance - Authorized HP Tuners Reseller Remote Sep 1, 2009 · Most everyone I have talked to wants a nice smooth MAF curve, me to until I saw that I was going lean at WOT at ~9375 frequency. 3 does. 619/. Have others had luck here? 3. What is happening is I am driving and its logging data and then switches in MAF failed and then goes lean and runs rough. 576-114, WCCH Stage 2 heads, Front Mount Turbo MP45R Turbo, Intercooler , dual 3" maganflows, no Cats, CKPerformance Billet 4L80E, ProTorque converter, 14 bolt Detroit TrueTrac 3. ) are correct and your Ve was already dialed in. I don't think using his config will work unless you create the MAF Period PID first. Note the IATs in those pics are above the previously mentioned filtered 104* maximum. 6 PowerBond Lower, LSX Innovations Solid Isolator, ID850's, NGK TR7IX's, Accel 9070CK Wires, Spectre CAI, SRI Ported Throttle Body, SRI Catch Can, NGK AFRM, 160* T-Stat, 0fx2gv Brick, Hard Line Delete W/3/4" Lines, FB 101 FMIC, Pierberg CWA50, Stoptech Drilled/Slotted Rotors, EBC Redstuff, Cut Stock Springs, Flat Hi Guys, I currently have a new LS3 480 Gen IV and all seems to be working fine except for the Air system which I believe the MAF to be set wrong. Oct 3, 2024 · To clear up any confusion, I am running a MVPI3 tuner with beta software from the engineers here at HP tuners and the software so far has been running without a hitch and I am enjoying it. When I made the changes in 03 MAF Tuning. Once i switch back to my original tune file and then log it there is no issues with MAF sensor. 6L, Edelbrock Super Vic manifold, Aarons 102mm elbow, Wilson 105mm TB, AEM dual Nozzle water/meth kit, 60 psi injectors, Automotive FPR, dual Walbro Fuel pump setup, compcam 230/234-. I am tuning an LS7 maf on a 6. Is there a better method or is it all just what the tuner prefers to do? Oct 6, 2022 · MAF & VE were each properly tuned separately but everything worked better with MAF failed, even when it still had the stock intake tube & MAF in place. Then 03 MAF Tuning. After that copy the stock tunes table values to your tunes MAF table. Only messed with the cruising range too, didn't go close to WOT or PE cells. Jake 2000 Silverado 5. I changed dynamic high RPM Disable to 100 RPM instead of 7000 RPM ( 7000 stock RPM limiter for the car ) to force it to work with MAF table only. I reckon the MAF Sensor, ECU is is configured for a different size. 3 4L60 MAF Edit_5-15-2023_rev4 -3. 35 g/sec I took the sum of the LT and STFT vs MAF Frequency, copied it to excel and smoothed it out, multiply the MAF table by %1/2 and did some more smoothing. Can these big cams be tuned to run properly with a MAF only calibration and timing adjustments? He's saying there's probably enough room left on the current HZ scale. Ive heard airfloe vs period is better way to tune rather vs voltage. The PIDs are self-explanatory. After logging data from that tune using Cringer's maths for MAF and VVE, then multiplying by percent into the new tune, I got a P0068 and REP during the next logging session. Oct 15, 2015 · 2019 Ford Raptor Tow Rig Scarab 195 Open 250HO 2008 Shelby GT500 VMP Gen II-R (17psi), JLT 123mm CAI, Ford SCJ Monoblade Throttle Body, 56# Injectors, BoostAPumps, VMP triple pass heat exchanger (dual fan), 170* thermostat, BBK long tube headers, Dual resonators, Magnaflow Catback, LC2 Wideband, RXT clutch Finally, I wrote a step by step instruction for myself to follow while tuning for Speed Density. 2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93 MAF_ClosedLoop. 5mph Mar 25, 2007 · My knowledge of MAF tuning is limited, but I have done it once or twice. Tuning bank-to-bank is a pain, but aside from that, I'm getting fairly inconsistent fueling at the same MAF voltage across subsequent runs. Motor Specs: 6. FYI, 2. it saying i have to buy another license Support Those Who Support The GarageFor more tuning content check out our partner Elite Tuned School:http://www. Please let me know if you see anything wrong. I don't have a good factory tune to start from so would anyone be willing to check out my MAF tuning file. Right click the HZ values (column). 2013 OBM A6 CTS-V Coupe Mods: Headers back Billy Boat Exhaust, GripTec 2. How accurate are these when it gets below 30 veresus at 90f? Jan 10, 2008 · hello- just installed a camshaft in my LS1 and got it tuned by my tuner. Maybe the VE table was the opposite in 05. Includes a decent amount of idle at startup, followed by driving around, followed by a bit of idle at the end. 3 with dual exhaust ported throttle body and a aftermarket intake tube I am working on tuning the maf but I?m not sure how to setup the maf filters to get good data and what to use as filters? Apr 11, 2023 · MAF tuning is a crucial aspect of achieving optimal performance and protecting your engine. 3, manual, LT5 cam, LT1 intake in a 240z - etc. 2008 corvette ls3 6l80 car, I've had the car for over a year, played with MAF and VE tables last year using goat rope garage's methods and it worked fairly well. When tuning the maf. elitetunedschool. At least on an E67 it is 655. See how this does for your idle. Period table by 1. comCheck out the latest tuni my question? i have mvpi3 with aem wide band with the hp tuners pro link and paid the hundred bucks license my stuff. I found that the MAF voltage never went above 3. I've been trying to figure out how to set up a histogram for maf tuning, but all the info confusing or doesn't seem to apply. Got it idling good and for the most part running great but want to dial in my MAF AND VE but having problems Nov 22, 2009 · This is my stock 03 suburban with 8. This seems to be caused by the engine running lean under decel and very light throttle but I can't figure out what's causing it to go lean to give the bad data. My first run was best with AFR right at 13:1 accross the board. Ask me how I know. Sep 15, 2016 · Can someone explain how to MAF tune opposed to SD tune in the simplest manner? For example what values I would need to change or what I will need to research. hpt, the log for that on 04 MAF Tuning. After I got it close as I could I moved to maf tuning. Going straight to speed density with a 2 BAR OS is way easier. The current tune still runs ok, but I wanted to try my hand at a MAF tune and I am unsure of where I am going wrong. 12-19-2011 Jun 12, 2010 · 10. I have the VE table dialed in pretty close and am happy with it but am having some problems going forward into MAF tuning and then into closed loop and all. Now I have Kooks headers with hi-flo cats, 160 stat, Variram CAI and tune. 0 mystocktune-FTDC-turnedoff-MAF-4. I've recently started making my first revisions to my original stock tune. hpl is when I went back to very Car runs phenominal. anyways I've started attempting to tune maf - logging for MAF in Hz and changing the MAF vs Output Freq table using the Paste Special/multiply by % method. most mfg prefer placement a minimum of 8" behind valve to prevent mechanical pulsing on the sensor during valve operation. I first did some smooth runs to tune MAF and that was a good beginning. 2002 Trans Am 6sp, Hurst shifter, short stick, !skip shift, SLP lid, Holley filter, Dynomax Ultraflow muffler, Jet Hot long tubes and cats, FRA, HP tuners, Hotchkis STB and LCAs. any advise would be greatly appreciated. Apr 7, 2023 · Just took a look at this log in question though and I see MAF airflow, dynamic airflow and VE airflow all near equal at the 1200 RPM column (0. I try to keep the fueling a bit rich and let the 02 sensor trim back the fueling as it needs to. This isn't necessary anymore because you can log those GMVE values in real time with HP Tuners. I have turned off MAF and 02's to adjust the MAF. Advanced Tuner Join Date Feb 2016 Location East Coast Somewhere Posts Parameter is ltft+stft math units percent, set high and low values, and used maf sensor in frequency as the column axis in hertz. 6V even when I pushed the car hard. 8 rockers, K&N, Some day I'll finish putting the LS6 intake on Aug 8, 2022 · If after finishing with the MAF, you go to a dyno to accurately tune PE, does MAF tuning above 4k matter? 2002 Trans Am 6sp, Hurst shifter, short stick, !skip shift, SLP lid, Holley filter, Dynomax Ultraflow muffler, Jet Hot long tubes and cats, FRA, HP tuners, Hotchkis STB and LCAs. Hello Everyone First time MAF tuning just want to make sure I have everything right here. I have come to the conclusion based on my scanner that my issue is definitely MAF and fuel trim related. For part throttle tuning, You can then force it to open loop in order to tune with your wideband, or simply keep it closed loop and tune based on the fuel trim values. 617, 113 LSA), GM 50 lbs injectors (12613412) with a t56 in an 86 c10. Blended mode is having the maf and ve working by having the dynamic airflow set at 4k enable and 3900 disable for example when under 4k the airflow model will use both maf and ve for fueling calculations and above it will use maf only like for wot fueling - if you just want maf only tune you would set dynamic airflow to 200 high rpm disable Car basics - '04 GTO LS1, descreened MAF, ported 243 heads, Comp 227/230 . I personally went with the 2 bar custom SD OS, and then an actual 2 bar map sensor and have never looked back. Even small things like an over tightened hose clamp near the MAF sensors can distort the housing and give you some strange MAF curve values or even make it impossible to get a decent tune. So once I finished tuning the VE, I plugged the MAF in (to tune MAF), which then registered the correct IAT (97 degrees) - which DUMPED fuel to account of the temperature Wonder if the tuning guru's could offer the pros/cons of tuning the MAF by disabling the LTFT & using the STFT instead. Also you need to click percent % as the unit in the graph and 1 for decimals. I have a 2004 LQ4 block with PRC 2. MAF tuning - this also appears to be a little erratic. Anything I can do about that? Or do I just need to scale back IFR and scale back MAF table and deal with the 12k? Getting ready to start MAF tuning, had the cfg for the old suite and it will not load correctly in 3. Drop down menu will appear. With the MAF tuning file loaded in it runs extremely rich non I only used 2 histograms: LTFT1+STFT1 vs MAF Voltage, and LTFT2+STFT2 vs MAF Voltage. When tuning the MAF what is the correct way to drive to get an accurate scan. 00 above 194F. Then I read where someone says to try and hold the throttle in each cell until the values level out. Make sure you have MAF Hz listed to read in your PID list or it won't work. HP Tuners Dealer- VCM Suite (free 2hr training session with purchase), credits and new Version 2. 18541 beta and car is an 09 ZR1. Oct 24, 2023 · I datalog and get the VE table dialed in to where it is between -5% and 0% on the fueling. Apr 5, 2023 · I have the tune forced into MAF-only, with trims and PE disabled and the open-loop EQ is set to 1. I'll take a look at this and thanks again. ----- Adding MAF Fuel Trim Graph: Step 1: Go to your "Graph" tab, right click and select "Graphs Layout". Without these, I will still be trying to figure out how to open up the software box. Feb 9, 2014 · HP Tuners Dealer- VCM Suite (free 2hr training session with purchase), credits and new Version 2. I followed the steps in the HP tuners help guide first, Upon starting the car the afr was very high, Like 16-17 at idle and slightly higher while cruising. Switch to MAF only, tune MAF. Once you are done with WOT you should now fine tune the lower part of the MAF by using LTFT+STFT histogram. 0-Step2. xls 10-07-2022 #20 Its driving me crazy. Mar 28, 2008 · Im used to tuning my maf via ltft and now i want to tune my maf using my wideband. Tune Strategy recap - what is it, why use it and when to use it? Now into the car. 3. I can't seem to get past step 7. They go in order - 02 MAF Tuning. Thanks DSteck! As for the MAF, I thought this one went to 15k, but the table is only to 12k. is there a preferred order to tuning a NA car? Hello, I am new to HP Tuners, but learning. Repeat the process making a 2nd set of Histograms using LTFT alone vs Maf Freq and then STFT alone vs the Maf Corr Table. Do not know why people say MAF ends @ 512. The other was a rock crawler and the guy had put some lead additive in it by mistake. It's pretty much like VE tuning, just with different axes. Then record the MAF freq Vs AFR. I did this once and fuel trims were only off by 7% on the first tune. i made the maf err table and changed the tune to do the maf the right way. 23. For example the earlier years may have reached max airflow around around 8800hz like my stock LS3 did and my 2016 5. The car is a LS1 with a Kenne Bell Blower in a 1969 Camaro. The filters should take out PE as well, so don't worry about disabling PE. See full list on askmyauto. I'm also logging LTFT+STFT against the MAF freq columns. took it to a reputable tuner in my area because I didn't want to take on the challenge with my limited skill base lol. 608 114 LSA cam, Ford red top injectors, Supra TT pump, Corvetter regulator (58PSI cold, falling to 55PSI warm,) 1 3/4" longtubes into a 3. I am going to tune my ve table using my wideband before i start my maf tuning but my question revolves around what tables to disable while im tuning my maf. I have added an 85mm TB, Z06 MAF, And bigger intake tubing. This will work on vehicles with one or two MAF tables. This is meant to serve as a basic how-to for setting up a MAF fuel trim Graph (or graphs) in VCM Scanner V3. Current tune looks to be in mixed mode, both MAF and VE are active Dec 19, 2011 · Thanks, this will come in very handy when I convert my stock APS TT tune to the custom 2 bar and replace the stock maf with an ABACO 3. 5 I attached a couple logs and tunes. Technically with a wideband, you can tune the maf frequency all the way to 15,400 and if you want to see airflow beyond the maf limit, you can monitor the dynamic airflow. Thanks very much to the guys that helped create the CPIG tuning guide and the “Start Up” guides. New Gen V 5. Clogged his 3 filters including jamming the regulator in the final filter and caused some sticking issues with his injectors. 8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HVMC, EWP, GMMG, 9" w/4. Also i've seen to set under Dynamic airflow, High rpm disable to 0. 6l mustang, just a straight pipe and cold air right now but I read up on Eric Brooks article and have been researching on what the parameters mean and how i change them to make my car perform better although there is very little information on my car on 2005 Grand Prix GXP - 5. This is for a LS3 (Gen IV) but is still very much relevant for what you are trying to do. I am tuning a 06' GTO 402 with a super charger, which was tuned before by someone using HP tuners. 0L with an ls3 top end. 2. Everything seems to run smooth as ever. The same tables as a ve sd tune? I replaced my intake and MAF tube so I had to retune my MAF. Why do I need to tune the MAF? My MAF, intake and intake ducting is still stock. Aug 19, 2010 · 4. Then disable COT lean cruise by setting it to disabled and disabling DFCO by setting the enable temp to 250. When I change the MAF table, it looks like it stays the same (average about -20). May 24, 2023 · 2010 Vette Stock Bottom LS3 - LS2 APS Twin Turbo Kit, Trick Flow Heads and Custom Cam - 12psi - 714rwhp and 820rwtq / 100hp Nitrous Shot starting at 3000 rpms - 948rwhp and 1044rwtq still on 93 I have seen that you get the VE and MAF tuned and then adjust the PE to what (dial in) for WOT. Aug 12, 2019 · Support Those Who Support The GarageFor more tuning content check out our partner Elite Tuned School:http://www. 2 to read the PCM and 2 to write. I attached my current tune and a log of me driving around my neighborhood. Values -2. Please help! See my Log files and tunes attached MAF Tuning Step 2 Apr 1, 2020 · Extremely green in this section, worked on cars my whole life but never got into tuning with HPtuners.
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