Rockitansky

Hi all, I swapped an LS3 stock Corvette engine into my C5 track car and barely runs. Im using HPTuners and downloaded a stock LS3 tune for starters. Just some background on car, has no emissions, traction control, only rear 2 O2 sensors, Wide band O2 sensor installed, and 1 7/8' headers no cats, manual trans, Vararam intake.
It has the Gen3 ECM and wiring with all the necessary wiring adapters, with the Lingenfelter 58x conversion box.
Engine internals are all stock.
Now the MAF sensor is located about 15" from throttle body, which might be a little far but all i can do for now.
I have attached the scan when I ran it and if anybody can see any thing obviously wrong please let me know. THX Brian!

mrvedit

Please indicate exactly which ECM/PCM you are using. Your use of the Lingenfelter indicates its a PCM. It is a "411" or earlier?

NicD

iTrader: (7)

Post the actual tune file.

I can tell you didn't fix the LS3 MAP sensor scaling, not sure what else you missed though without the actual file being posted.

Rockitansky

Im not sure if its a 411 or earlier, all I know its the 2002 C5 Z06 PCM. The entire wiring harness is Gen3 with Racetronix adapters. Oh and a LS2 throttle body. I wish I knew more but I guess thats why Im here, but thanks for the reply...

Rockitansky

Thx for reply, I thought I posted the file using HP Tuners software. I will look into MAP sensor scaling, is that difficult? Im a newbie with this tuning stuff....lol

mrvedit

@nicD must have a good eye examining your log file as I see no reason why a "stock" tune would have/need any kind of scaling. NicD - did you mean MAF scaling or are the MAP values that crazy?

QwkTrip

iTrader: (23)

How does a stock LS3 tune from a E38 PCM get loaded onto a P01 PCM? They don't even share the same strategies.

I might suggest that you have a custom tune that somebody said is stock, but really it's their custom tune for a stock engine, and it might very well not be a good tune either.

NicD

iTrader: (7)

MAP sensor scaling is off, look at what it's reading key on engine off. He is still using the LS1 map sensor settings when it should be set for the LS3 style.

Rockitansky

Ok here is my latest run. I attempted a throttle body relearn procedure but no help.
Yes it could be a wrong/bad tune from HP repository, but Im not proficient enough to tell. The tune did say 2008 LS3 OEM manual trans, but I guess thats a crapshoot...

NicD

iTrader: (7)

I'm not going to sit here and guess...

mrvedit

PLEASE post the tune. The log file is not that interesting.

02EBC5Z06

iTrader: (1)

Jesus Christ....

Old Buzzard

G Atsma

You've been asked REPEATEDLY to post a tune
Is there a problem or just a mental block??

Old Buzzard

Troll.