jkel1124

iTrader: (3)

So I have a recently built LS6 in my 05 CTS-V. It has a Maggie pushing 11-12psi with meth. The tuner can't seem to figure out the problem. He street tunes using hard pulls in 4th. Well it runs very hard and smooth in 4th. The problem is 1st, 2nd, and 3rd. Under normal driving it's nice and smooth but when you punch it and hit boost it just kinda bogs and you can feel it not gaining power. It helps a little if you ease into it. It seems like the lower the gear the worse the problem. No engine codes, however, I do still have brake/ABS/TC lights on. Going to the shop this week to have that part taken care of. Any help is appreciated!

Old Geezer

iTrader: (3)

Post the tune and data log[s].........

danieloneil01

What's the wideband reading when it's bogging?

jkel1124

iTrader: (3)

I don't know. I'm going to try to get the information from my tuner and post the tune and data logs later. I'm supposed to take it back to him this week after I get the (ABS/Brake/TC) lights straightened out. It seems like it might be somehow related to TC or torque management. I can't even get a chirp out of the tires 1-3 . Just falls on it's face if I go any where near wot, but 4th gear and it's beast mode . Makes me want to just put around in 4th all day.

danieloneil01

Sounds like the tuner forgot to change max TQ to 640.

jkel1124

iTrader: (3)

Well the problem turned out to be a bad abs ground. Grounded it right and all the lights (brake/abs/tc) turned off. Now gets side ways in 3rd without much effort. Who woulda thought a stupid abs ground.