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2012 CTS-V Wierd Power Loss in 4th gear

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rushhour
2012 CTS-V Wierd Power Loss in 4th gear

Hi Guys

Got a strange issue - not sure if it is the tune or something else. Car at the track has wierd blips/loss of power in 4th gear - it is only for a split second - but happens a 2-3 times in the run.

Not sure if it is a tune issue or mechanical.

Car has a 2.55 pully, Airaid CAI, and ID850 injectors. Injectors are new - but the car did the samething before the injectors. It was tuned using a wide band on a dyno. I was wondering if it was some kind of torque reduction going on. Trans also has 2 quarts extra in her.

I got the car used with the pully and believe it or not - no tune was in her except a few trouble codes were knocked out - ouch! Can you say KR! Not sure who pulled the tune - but it is wierd that the codes where knocked out and everything else was put back to stock (to fool the dealer I am sure).

Anyway any help you give in pointing me in the right direction is appreciated.

Ignore the KR in the log (and the crappy launch - wheel hop - ugh) - I know we need to deal with that - that is why I always say a steady state dyno is different then the track.

By the way great forum - the info presented here is great.

Steve

 

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