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how does it run on stock tune but setup to run only on maf? i would think nearly a stock truck you shouldn't be too far off on maf cal so it might just be bad, but i would see how it runs on only...

sorry i've been so slow on getting back to this. my eq ratio i at 1.00 all the way down my chart by 158*f. i've always brought my engine temp up before logging for tune.

i will double check but i'm sure it was. i left my laptop at home today so i'll have to check when i get off tonight.

any ideas why my fuel trims go positive after re connecting maf?

ok, back to learning this tuning again. im working with a 2002 chevy rcsb 6.0L 4l60e. motor has 229/232 615/575 113+3 cam, 4.020 bore, mild ported 317 heads, trunion upgrade, 650 dual pac springs,...

whats the verdict on this issue? should you have shift lock enabled?

clutches slipping?

my injectors are delphi 25320288. not alot of info i could find on these and it conflicting. my injector flow rate vs. kpa vac is 25.2 across the table. anybody know if this setting is correct and...

i almost have my trans issue whipped (for now??). i ended up installing a cooler because once these issues started happening my trans temps went from 200 up to 230's. with new cooler i'm down to...

go into transmission and torque management. change your abuse mode to remove torque management. i'm not sure about your gearing, but you are shifting 1>2 and 25mph. that seems way to low to me.

now i got bigger problems. my tcc is not engaging and giving code p1870 on scanner. i noticed right away once on the highway going to work it never locked and trans temp was running higher than...

so this may seem like a dumb question but where is the best place to start in my case. alot of the how to's posted say make sure other scales are in check before attempting. i don't know exactly...

being that i have a ecm out of a flex fuel vehical, is it safe to change my stoich afr the same across the board like a none flex fuel vehical? i already told it to do not report DTC on my flex fuel...

I finially have reading o2s, there was a signal wire swapped with rear o2 when extended. I did a quick scan just to see where I am at after that fix and removing p0178 from reporting. my ltb1 and...

i ran a quick log while running for lunch and noticed my b2o2 sensor was stuck at 450 the entire time and my b1o2 moved around mostly staying in the 800-900 range. i replaced the b1o2(drivers side)...

2xLS1,

seeing your post is right on subject where i think in need to start with tuning my truck. a 2002 scsb non flex fuel truck with 2002 flex fuel computer and lq4 swap. i'm getting code p0178...

I have replaced drivers side o2 when i first got truck. That cleared the code i had for it.

Are the fuel trims in that file or do i need to run a log? I bought a ngk wide band and installed it...

did i attach right files to get any help here?

hi all, recently aquired a 2002 scsb originally 4.3l with a lq4 swap. the seller gave little info about the truck but i could tell mechanically it was decent shape. i decided to purchase hptuners...

hi, chris from texas. i just purchased hptuners for my cars. i debated taking my new to me truck in that is in need of some tuning for a dyno tune or just learn the art myself. i decided i would...