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Tuning a blueprint LS427 engine .. tune is way off and their support for this issue is horrible. Engine seems great. I have had Hptuners for 12 years and have lots of experience but I need help...

yeah I have MAF disabled currently and will probably leave it that way as the turbulence and noise issue makes total sense

they say they are 42's.. I havent asked exact info on them but I have been in contact with them and at this point I am very dissappointed with their tuning division.. engine seems great so far but...

01G220B is part number which of course pulls up nothing online.... Did a scan last night and VE table vs LTFT is 20% lean pretty wild they would send this out this way

yes but comparing this tune to a stock e38 camaro 42lb tune the rest of injector settings are the same....only flow rate vs pressure is different. I will pull injector of course before I change it...

i tried getting to it without pulling an injector to not risk o-ring but all I can see is 016220B. looks like ill pull fuel rail tomorrow night. In my thinking if they are 42's and are set for the...

anybody else have any input... after another incorrect tune sent from blueprint R&D division where they slightly modded MAF table and spark table for a cold air intake tune I'm going to start from a...

right..parts list doesn't give injector part numbers either... I'm hoping it's an issue like that but I also dont want to load up the 42lb specs but they say it's an LS3 intake package and the ls3...

I have been helping a friend get an airboat going and they bought a ls427 package from a well known company... dyno sheet shows 630hp on this tune and I have called a couple times just to make sure...

anybody?? im using 2.22 and had this happen yesterday

yeah ive set the misfire tables and not getting any codes... been working on it as I can... cant get hptuners to download on desktop..vista premium.. and wife has to use laptop for work so I don't...

I have been searching and tuning like crazy but still having issues keeping converter locker cruising 50-63.... I am still playing with it but I noticed that while cruising if I just touch the brake...

nice info... mines doing it too.... i will try mine tomorrow and see if that does it

That avater looks an awful lot like trever1t's....???

here are the files.. I have yet to work on the STFT but VE table just seems high..

I have been tuning the VE table with the MAF plugged in and disabled but I just want to see if anybody else has had values as high as mine are.... motor is a 5.3 bolt-ons only right now.. gotta cam...

I do understand what the sensors do and thought it was odd unplugging the IAT but the write ups on this site (I will only use the write ups from now on) were the first to mention don't unplug the MAF...

I logged with the dtc set to error on first and then stopped in the middle of the road.. unplugged maf reset fuel trims and logged another one. Am I wrong to think that the fuel trims should be at...

k I see what u mean now.. I will try it and i also figured out the AFR error

but if you look at my logs I have the MAF fail set to zero on both logs... just one has MAF plugged in.

it does throw codes 101 and 102 with it unplugged

2004 gmc sierra 5.3.... stock MAF with IAT

Like I said it is the same tune on both logs... ALso I can't get AFR error to work..

I have been dialing in my ve and when the MAF fail is set to 0 and unplugged my VE looks real good... LTFT's all 0 and STFT are mostly 2-4's.... but when I plug in the MAF.. on the same exact tune...

he is saying HE ordred the wrong one and is worried that since it came opened already he can't return it for the PRO...