Hp tuners maf only tuning. Ok now the MAF question, I will use STFT … NO WB.

Hp tuners maf only tuning MTI built the motor and programmed the computer with LS1Edit. View Profile View Forum Posts Private Message Tuner Join Date Jan 2012 Posts 165. Show Printable Version; 05-07-2013 #1. Thread Tools. 0 turtorial available (for tuning only) so I can tune the MAF into the PE area a little bit as well? Yes you can set it to 1. /min. The MAF sensor is dissabled. BJK Last edited by 07MontRedcp; 12-19-2011 at 02:12 AM . 5_Liter_Eater Tried 2% richer on the MAF and lost HP; tried it 2% leaner and lost HP. View Profile View Forum Posts Private Message Tuner Join Date Nov 2016 Location Baghdad IQ OK, need a little assistance. 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. 630" . then you can do your base running airflow to try and remedy the stalling issues at idle. Otherwise you don't know whether you should be adjusting the MAF or VE tables. thats what i did. then if you want, disable the MAF, and tune the VE using the VE tool from Bluecat or EQ<>VE from Ktoonsez. 07-apr-2023-maftuning-3. 8 rockers, K&N, Some day I'll finish putting the LS6 intake on I want to run SD only and delete the maf entirly. My Tune (HP Tuners), Rotofab CAI, HSRK, Corsa CB, Kooks 1 7/8" LTH, Kooks Catted connectors 1987 VW Scirocco 16V - Stock 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 Support Those Who Support The GarageThe Garage uses Frankenstein Engine Dynamics and the great products they offer on our builds:https://frankensteined. ED M 2004 Vette Coupe, LS2, MN6, Vararam 1. 01-31-2012 #4. 84% throttle opening in HP Tuners is full throttle. Can someone give me a good, reliable method for tuning the MAF on the coyote? I've been using STFT as a correction factor and it doesn't seem consistent enough. Same procedure after In this thread will be just the basics for setting up a speed density tuning using the most recent software HP Tunes has out. You'll never get a well tuned MAF with bad injector data. 15 and FI 1. Boosted C6. I have LTFT learning So I have two points of reference for setting up a VVE/MAF Only tune. Show Printable Version; 04-11-2021 #1. Current tune looks to be in mixed mode, both MAF and VE are active Yes, tune the MAF using CL (idle/part throttle), then tune the MAF for WOT with a WB. Your stock file switches over to MAF at ~ 4000 rpm unless you lower it. MAF tuning is sufficient unless the BOOST exceeds about 10 PSI on a 5. 1 lambda. Reduced engine wear: Accurate MAF readings can help prevent engine damage by ensuring that the engine receives the right amount of air. If not using a MAF (Speed Density), tune the entire operating area of the You can tune the MAF first since it’s easier and quicker, then move on with SD tuning,or run her in MAF only for a while until you get familiar with SD tuning, or keep her Total Trims should be considered when doing both maf and v/e tuning. 7/7. Whamo. also running speed density only removes the maf input. Are some cars tuned primarily via the MAF with VVE only used for fine tuning the driveability? 2013 CTS-V, auto, Recaros. it just doesn't happen. Don't know who tuned it but it had some minor running issues. But of course I have a huge list of mods I want to try out. Without these, I will still be trying to figure out how to open up the software box. Why do I need to tune the MAF? My MAF, intake and intake ducting is still stock. And no way to manage the transition between where the MAF is working and where it is not working. I guess this could be a result of my VE tune and MAF tune being slightly off from one another but they are The maf is very easy to tune in theory- saves tuners alot of time, tune an engine in a couple hours usually on the maf. hpl pat file night. The same tables as a ve sd tune? I know i have to set my closed loop tables but do i want to disable ltft learning,cot and Save file as MAF only tune and flash calibration to pcm 4. 0. Then after tuning the VE table, you can then disable dynamic air and tune the MAF. I first did some smooth runs to tune MAF and that was a good beginning. com and buy the tuner setup he has for sale, then just modify the ones you need to use. thanks flame. So I have two points of reference for setting up a VVE/MAF Only tune. Lasota states you should disable LTFT under Engine>Fuel>Open/Closed I have a 2000 Silverado 1500 5. This method uses the stock narrow band oxygen sensors which are not accurate for this type of tuning. Gained 29. - You can do a compare against my stock tune to see what i have changed. KLUG'S SS. I have a bolt-on only LS3 C6 and have tuned it Maf only. )-Updated injector data-Updated MAF data-Updated spark data for new coils-Upped idle setpoints You can tune the MAF first since it’s easier and quicker, then move on with SD tuning,or run her in MAF only for a while until you get familiar with SD tuning, or keep her running MAF only forever. I read a couple of tuning books, and lately I have been reading a lot of threads in this forum. I used to have a turbo swapped cobalt ss so I am not new to hp tuners but this will be my first time playing around with the Camaro. Sort by I have the tune forced into MAF-only, with trims and PE disabled and the open-loop EQ is set to 1. also do you have a tune file from the current ecm? a 2010 zr-1 file has to match your ecm model: P01, P59, etc. for open loop they are a mmust have. Go get more data. 0 turtorial available The only thing I am unsure of is tuning MAF and VE at the same time, without disabling one to tune the other. That is going to be the sequence to follow to find resolution to your issues. Maf only tune; Results 1 to 4 of 4 Thread: Maf only tune. View Profile View Forum Posts I just started tuning on my 14 GT and I have a slew of questions. Going straight to speed density with a 2 BAR Your injector data is wrong. I personally went with the 2 bar custom SD OS, and then an actual 2 bar map sensor and have never looked back. (I didn't drive far like this, didn't want to risk damage to the engine). 0L injectors from 2012 Express 3500 long tubes So I am driving around tuning, copying/pasting and multiplying my AFR data by half. 3. 5" maf that is rated for 1024 grams/sec. 5 PSI Boost), Headers, Mild Cam, Tuned for 93 Octane Pump Gas Can someone here confirm that my installed dyno tune is actually a 'MAF only' tune Engine / Airflow / Dynamic On the stock LS3 tune, . i have re done their cheap cold air I have a 1998 blackbox PCM from a tahoe and im trying to figure out how to disable speed density calculations (short of just failing the map sensor which i dont want to do). Show Printable Version; 10-01-2011 #1. 3) set Decel Fuel Cut Off to 284. 548 and flash this tune to the car. trying to do copy paste by special percent-half seems to do same thing. How to tune maf hp tuners. During this I also tuned my timing and switched to using only 93 octane pump gas. I have taken some screen shots of how you can setup the tune to run in speed density on just about any P01 computer and P59 computer. net/F Maybe your tuner turned off MAF at a lower RPM because you are flowing more air earlier, and the MAF is hitting its' limit earlier than a stock engine. Disable MAF, tune VE. 00 above 194F. View Profile Suggest looking at You Tube video titled LS3 MAF TUNING USING STFT - HP TUNERS by hughesperformancetuning. 4,000 rpm / 3,900 rpm On my dyno tune, . Tuning a Mass Airflow (MAF) sensor using HP Tuners software requires a Hello guys. 2. You'll want to have it set in a maf tune only to tune your maf as well. So I got the HP Tuners 2 bar SD operating system installed a wideband O2 that logs data in HP Tuners and did my own tuning and could not be happier. 0+ and then specifically being the 4. Put DTCs back to stock, MAF High Frequ fail back to stock (13,500htz), High RPM Disable> set to 400RPM. 23 across the board. 4 version. net/F I've also been talking the mowton here on the forum for some tips on starting this tune. hpl pat airboat tune log 6-13 justin review. a) What do I have to adjust in my tune to optimize things? b) Should I raise my airflow in "MAF Calibration: Airflow vs. 3 KB, 38 views) Last edited by 123pugsy; 06-23-2019 at I still see a lot of people using the old method of disabling the MAF to calibrate their VVE on 4th generation LS stuff, that generally being E38 controllers and up. hpt (269. ls2 speed density only tune maf codes; Results 1 to 3 of 3 Thread: ls2 speed density only tune maf codes. 3 LS4 - HP Tuned, MF catback, 1. I absolutely hated how it shifted and when the converter locked -New 85mm MAF-LS6 intake and TB-42lb injectors-D585 coils (truck coils)-243 heads-TSP 224R . Constantly IPC torque through the roof, desired MAF vs actual MAF way off, and constantly going in to limp mode. You can kill dfco, but don't go open loop. Attached is the log and the current tune that was used for yesterday's drive. SD tuning is only necessary if the MODS performed have exceeded the capacity of the PCM to control normally. Im used to tuning my maf via ltft and now i want to tune my maf using my wideband. I use an Autometer Cobalt WB (lambda, Bosch sensor) gauge in a column pod mount with the 0-4v analog output going into HPT Pro scaled 0. HP Tuners LLC; Top; All times are GMT -5. ) and then tune the MAF in MAF only mode and dial that in, the two will play nice together. Multiply the entire MAF Airflow vs. Any cons to leaving it MAF only? Finally decided to tune in my MAF. It appears to me that it was tuned MAF only. 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. 90 on wideband). when i make a change it overshoots by sometimes 20%. 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 Tuner in Training Join Date Nov 2021 Is this the only filter needed to get good data or should I be filtering anything else for maf tuning Free HP Tuners Beginners Tuning Guide LS1 Tuning Guide Michigan Snowmobiler If you tune in SD closed loop and get everything dialed (VE tuned etc. 8. However without a 2 or 3 bar map sensor. fst100. I called HP Tuners before ordering and was told I only need it for WOT tuning. Join Date Mar 2003 Posts 4,860. Also keep in mind you typically want to be in MAF only or SD (VE) while tuning. 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. the 3800 does not use the v/e table for transient fuel and will only use the v/e table if the maf fails. ) Go do enough ONLY MAF tuning; Results 1 to 5 of 5 Thread: ONLY MAF tuning. View Profile View Forum Posts Private Message HP Tuners LLC; Top; All times are GMT -5. Then I hand tuned the MAF while doing WOT runs and also when doing some runs including part or heavy throttle runs data. the 3800 does not use the v/e table for transient fuel and will only use the v/e table if the Improved fuel economy: With more accurate air/fuel ratios, your car will burn fuel more efficiently, leading to better gas mileage. This is for a P01 ecm. 6V even when I pushed the car hard. what happens if you if you run the blend tune like factory does? where it uses both vve and maf for Former owner/builder/tuner of the FarmVette Out of the LSx tuning game. HP Tuners Dealer- VCM Suite (free 2hr training session with purchase), credits and new Version 2. Everyone I see has me disabling DYNAMIC AIRFLOW by setting HIGH RPM DISABLE TO LIKE 400. i can never get it within 2-3% on MAF only, so im wondering even when ive dissabled Dynamic airflow, DFCO, and LTFT that something external still messes "maf only" up? ill attach a long log, but theres no pulls in it, i have a older log (1 day and 1 maf change of a For example a HIGH RPM DISABLE = 400 and a HIGH RPM RE-ENABLE = 300, would turn off dynamic air flow and run off the MAF only, disabling VVE\MAP (MAF tune only) also if the HIGH RPM DISABLE = 8000 and a HIGH RPM RE-ENABLE =7900, with the MAF set to fail would be a VVE/MAP only tune. 1 vortec guys around here most of us more than willing to help. This isn't necessary anymore because you can log those GMVE values in real time with HP Tuners. 04-22-2009 #18. It seems the norm unfortunately. I found that the MAF voltage never went above 3. 0 turtorial available Yes, the only thing you can't do is pull the plug; IAT's will default to -40. I am running the VE enhanced OS. 5% bigger than stock. steve-0. the Dynamic Airflow 'High RPM Disable' and the 'High RPM Re-enable' was set to: . By setting this to a low rpm like 400 you force the PCM Turns out, the issue was due to me unplugging the MAF for tuning the VE table. Read the installation instructions for the 2 bar in the help menu - it's speed density tuning only for 2 bar. you will not loose any other functions as a result of running strictly in speed density mode. in the channel list. New Gen V 5. If there is any drawback I'd have to say it is in that initial Support Those Who Support The GarageThe Garage uses Frankenstein Engine Dynamics and the great products they offer on our builds:https://frankensteined. 5% all across the table? 2. Once you are getting fuel trims in the <4% range(ish) or something youre happy with, then you can tune MAF. Guys, I just wanted to get your opinion on Maf only tunes. HP Tuners. 4) reset and disable fuel trims as stated above Free HP Tuners Beginners Tuning Guide LS1 Tuning Guide Michigan Snowmobiler Virtual Volumetric Efficiency. For an NA car it should be like 1. Instead of clogging up the other thread, i figured we should start our own thread for others to find info easier. Now, I don't know why you can't run the MAF for boost applications in HP Tuners, since 5 - 6 lbs of boost should not max out the MAF - I assume its a programming thing???? 02-28-2010 #19. View Profile View Forum Posts Private Message Advanced Tuner Ok I have a few hopefully simple questions but I cannot find good answers to by searching the forums. Trying to learn my way around HP Tuners and could use some guidance. I have a supercharged 16 Camaro SS that I had remote tuned. 3 LM7 4L60E 862 ported heads chopacabra cam 6. S2H. 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. I want to do a LTFT tune and I have to disable the MAF first. hpl Rinse and Repeat. I've run my C5 MAF only since I began tuning it. Occasionally It will not reach the target or even be close for that matter (. We only have access to 6 of the 8 segments in the E38 PCM. 78 commanded and . Mods are 3. I appreciate the tunersactual professionals that tune SDit separates the boys from the men 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. no KR on hard shift when running MAF only. I logged countless runs at the dragstrip zeroing in on ET and mph. My MAF (and T/B) is about 2. a) If I tune it with the MAF disabled and get everything spot on, then what happens I feel like I take 1 step forward and 2 steps back. Period table by 1. 91 gears, long tube headers, K&N intake, And a Texas speed 229/236 . Period tables, and have made about three logging WOT PE TUNING – Do this only AFTER all LTFT's are -5 to +5. 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. also first hand experience with noticing more stability in Maf only with my personal gen 4 tahoe tuning the VVE and setting it back to Maf only. No MAF. flame. So far I have the car idling half decently around 850rpm and the idle adapt spark your ecm does have a scale for iat2 temp i forgot. The car is a LS1 with a Kenne Bell Blower in a 1969 Camaro. I'm new to this forum and tuning, but I have been using the HpTuners for a long time (mainly the scanner though). All you need to do is use the proper math parameter(s) and filters to transform the data into the classic '% error' Car basics - '04 LS1, descreened MAF, ported 243 heads, Comp 227/230 . Both VE and MAF have been tuned, but with no VE, it just feels much snappier. DreamKa. Make sure you're filtering airflow not the sensors themselves, and be sure you're logging the channels for them. The car is pretty stock. Just a CAI and some Roush exhaust. hpl (890. This is for a LS3 (Gen IV) but is 2011 Corvette (LS3) Supercharged (7. So I bought this car used 3 yrs ago with full exhaust (catless), rotofab, ported stock TB, and tuned at 40K miles. All you need to do is use the proper math parameter(s) and filters to transform the data into the classic '% error' Go to goat rope garage . i was thinking of my ecm the p12 like a dummy but even so your iat2 stays 32 no matter what but again your ecm doesnt have any pins for iat2. 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. 0 but set the actual PE table desired PE. My questions are When doing a Low-Partial Throttle Tune. Thanks for the reply 03-26-2012 #7. Start scanning and use VCM controls to clear fuel trims HP Tuners tuned - P1SC-1 Procharger. Gotta switch over lower to tune Oh no sorry to confuse you. - Attached is my stock tune and my current modified tune. 3 that I'm tuning currently, and the only modification it has is a "torque" cam from Summit Racing. The HPTuners 2BAR enhancement is not required unless the MAF maxes out. If you are tuning such a vehicle, you can use the Virtual Volumetric Efficiency Table If you want to tune in the MAF, then you need to leave the MAF on and enable MAF only function at low rpm. You won't be able to make much of a change to the throttle opening without pissing off the PCM. i feel like i am doing something very wrong or setup is wrong. as far as the wide bands maybe someone with more experience will chime in. ) and HPT Pro V3. 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 killer thread BTW. 7. Just some info Do you disable the fuel trims when you are doing MAF only Tuning? How about DFCO? I am tuning with a wideband, I have the VE table done. Last edited by DGS; 12-09-2018 at 01:28 PM. Wonder if the tuning guru's could offer the pros/cons of tuning the MAF by disabling the LTFT & using the STFT instead. My current configuration has the standard gen3 MAP sensor. 8 KB, 30 views) 5. Re-enable both or whichever you prefer. I know i will need a iat sensor for thatso im just leving the maf in 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 program to Yes, you don't have the MAF frequency in your channel list. 05-02-2017 #7. like Road said we need to know what ecm your using, i have found its honestly a little easier to tune the 5. Your speed density tune becomes much more important then. Many other tutorials I have found online also suggest the same thing. Save Share Reply Quote Like. Switch to MAF only, tune MAF. - Here is a rundown on the things that have made what i feel is a giant impact on performance. I had the car tuned by a reputable shop but I think there's a bit left on the table and some room for improvement. im going to send you those pin locations in a few min but ill post here to. I have checked all my graphs, sensors etc, however I only used 2 histograms: LTFT1+STFT1 vs MAF Voltage, and LTFT2+STFT2 vs MAF Voltage. As for vve tuning (speed density) I'm not an expert on that so someone else will Hi guys I have a 2010 LS3 Camaro. However when i fire up and check I get an average of ~ -20 (some higher / some lower) in the EQ err. there are a couple of us 5. I made my MAF vs. Dmax1207. 12-09-2018 #6. That is why I think tuners like maf sensor tuning, they get the job done quickly in and out. the Dynamic pat modified 6-13(1). There is no way around it. He suggested starting with a MAF-only tune. There is lots of good information in these The specific video I am referring to is -----MAF Tuning and Scaling, Tuning Series Vol. My problem is that I do not have that as a option to change. Frequency" by 2. When I change the MAF table, it looks like it stays the same (average about -20). Make sure you log Dynamic Airflow vs MAF Frequency (Hz) In HP Tuners it is measured in lb/min so we will have to convert this later for the MAF table (g/sec). Am I overlooking something? I haven't tried it to prove or disprove the thought, just curious as to the thought So this presents a problem because now we're not only tuning one subsystem, we're not just interested in rescaling our mass air flow sensor, to do the job thoroughly, we also need to adjust and correctly tune our virtual volumetric efficiency table. That being 4. ive been reading it a and trying to wrap my simple mind around it. In light of this advice, I have come up with a MAF only calibration attached here. it seems like i have a decimal off or something. Still shoes a reading and I don't get a p0101 code HP Tuners Dealer- VCM Suite (free 2hr training session with purchase), credits and new Version 2. You can use the UMAP term to filter SD tuning and the UMAF term to filter MAF tuning. 5 hp and 28. 5 ft/lbs. 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. . The PIDs are self-explanatory. Lasota states you should disable LTFT under Engine>Fuel>Open/Closed I am tuning a 2004 5. 1 vortec engines than the ls engines. 88-. Every time I think I understand something about tuning my car, something happens that goes against what I thought I knew. Its not as if the tuners that tune maf only ask their customers if thats ok, or offer an alternitive price point for sd tuning. When the truck is warmed up, the idle gets funky and it wants to die when coming to a stop. I still have a few questions that I couldn't find answers to anywhere, and I would really appreciate it if anyone can help since I will be working with a 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 new to the efi tuning game. I have been filtering IAT when tuning the VE table since it only takes about 5 seconds of closed throttle for the IAT temps to shoot up 20° which throws Hey guys, I have a 2000 Silverado with the 4. Anyone run a MAF only tune? I know GM uses a blended VE/MAF model but was curious if there was any downside to diabling VE and running stricly on the MAF? While tuning the MAF alone (VE disabled) I seem to notice the throttle response is slightly improved. 613/. as stated above post your tune. The ones that we can't fully access are the throttle segments. Proceed as normal for each as far as failing the MAF and high rpm disable stuff. I am unfortunately clueless with how to add additional fuel in specific areas (since the Virtual VE is turned off) and across the board. we can always count Hey guys, finally getting around to tuning this thing. NGK AFX wideband (calibrated twice - it's about halfway back on the exhaust, after the y-pipe. HP Tuners Dealer- VCM Suite (free 2hr training session Im trying to tume my maf but it seems to be 2 steps forward 3 steps back when i change anything. 2005 Grand Prix GXP - 5. 600 114lsa-Custom 1 5/8" headers Things I've done to the tune:-Deleted/disabled all the typical stuff (VATS, EGR, AIR, TQ MGMT, etc. But the maf is a fickle bitch and blurry to tune. clean data in the table up. I've been using the LTFT+STFT method to improve the MAF period table. My base was a month ago with just flowmasters. I have been trying to get my MAF and VE tables dialed in for the last month but keep getting it wrong somehow. 615" cam, AEM wideband. 08-08-2007 #7. but thats just me if your on the ropes about which ecm to use id'e suggest the 0411 pcm from the I replaced my intake and MAF tube so I had to retune my MAF. 5" single exhaust. I am trying to find a way to run a VE only Tune that updates Barometric Pressure when changing elevation. oakley6575. I have removed the narrow band O2s. Input the data. You're right about the affect of the MAF sensor at lower rpms. 3, HP Tuners-----1. Following either of these books on the stock or Roush strategy has been incomplete to say the least . Most commonly found in Camaro/Firebird/C5 I still see a lot of people using the old method of disabling the MAF to calibrate their VVE on 4th generation LS stuff, that generally being E38 controllers and up. You are going to loose resolution. Its like a average tune even on the best of days. MAF Tuning is the same thing. Seemed the most basic to start out with. As I try to tune it in increments, as GRG advises, it seems to make small changes at idle, but as soon as I rev it 1. 02:21: Let's have a look in the VCM Editor software and we'll see exactly what we're dealing HP Tuners Owner. 7L. Hello, I am new to HP Tuners, but learning. I have turned off MAF and 02's to adjust the MAF. The entire reason I got HP tuners was basically because of the torque converter and transmission. Apparently not, correct? maf disable for tuning. I got an MVPI from co worker at that time and made a few adjustments. i dont have any but im just tuning for part throttle and highway drivability. On most Gen 3 PCMs there is a setting under dyanimc airflow called "High RPM disable" where the PCM only uses filtered mass air for fueling. Turned off all the correct O2 codes (32 of them), made some minor timing adjustments to eliminate knock in my daily Is my MAF properly disabled for SD tuning. 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. By setting the Hi/Lo RPM Thresh to 0 will force the computer to use the MAF Only and not reference the VE table so you can properly tune the MAF with no outside fueling references. 0 turtorial available with the above statements about the magical 4000 rpm spot. how high should i take the MAF frequency before hitting PE? at what Just dial in the MAF and VE at the same time in normal closed/open loop operation. I have read and read and watched video after video on how to tune Gen MAF and VE. jcrumpley. To do both, you need to turn off COT and DFCO and a few other bits and pieces as well. SD can tolerate bad injector data, which is why your SD tune If using a MAF sensor, only tune the idle and part throttle areas of the VE table, 4000rpm and below. i dont have access to a zr-1 file so i cant comment on its modelbeing as its a So I have tried to tune my car using the strategy From the coyote cookbook and the tuning school ford book. The Tuning School GM Beginner/Intermediate and the Lasota Racing Ultimate GM EFI Tuning Guide for HP Tuners(Which I just received two days ago. You MUST fix the VE table and MAF table before you move on to idle tuning. 3 tune test drive. 7 to 1. Since my MAF has IAT built in, my IAT was -34 degrees during the entire VE tuning process. So, me being only 5 days into this journey, how do I disable dynamic 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. View Profile View Forum Posts Private Message Tuner in Training Join Date Apr 2010 Posts 18 How many of you guys went MAF only? I just tried it and part throttle is much snappier, crisp, if you will. 2002 GMC Sierra 5. No cats. Total Trims should be considered when doing both maf and v/e tuning. getting beat up by a 2014 camaro on what should be simple maf tune. Thanks very much to the guys that helped create the CPIG tuning guide and the “Start Up” guides. View Profile Wilwood Brakes - HP Tuners tuned - P1SC-1 Procharger. Ok now the MAF question, I will use STFT NO WB. There are no short cuts. I would almost go as far as to say that maf inly tunes are dishonest. Problem is once the MAF is done there is pretty much no way to properly control AFR after that point. 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. After I got it close as I could I moved to maf tuning. Just driving the car around, it would collect data at each MAF voltage point and average the fuel trim data. You only have Mass Airflow lbs. I am not sure how and when the two work and if that is even possible. 3l vortex. disable your VE lookups while you're doing MAF only. hptRunning an ls3 maf only, and my STFT's look good but need to be brought into range a little more. ). Now I have Kooks headers with hi-flo cats, 160 stat, Variram CAI and tune. hpl pat log 3 6-13 last pull wireless throttle off(1). Using techniques from Goat Rope Garage's channel on YouTube, I've been tuning the MAF, but without much luck. MAF is cake walk compared to the hpt VE editor If you're adding boost you'll need to change the max load settings for the NN then the VE tables will update for the added pressure ratio. Alternative fuels are simpler to tune in lambda but I learned that way a long time ago. 03-26-2012 #9. Rather than a traditional VE table, certain GM vehicles use something called "VE coefficients" for volumetric efficiency. My concern is that I can log a 4th gear pull and the Eq ratio commanded will match wideband very close, most of the time. 3, manual, LT5 cam, LT1 intake in a 240z - etc. 600/. bxuqj gadd lbmlp mfwcn mkjul hpxvgwk xquwi vevfn mli cxp htyd vgg hzpte ktwjkr mufm