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Yeah Cat Overtemp apparently but why does GM put that in the stock ECU ? It?s not even overheating at 930?C, is it ?
Do you think what my tunner did was good ? Because I still get an enrichment as...

What do you mean ?the same as the power enrichment? ?

Here are the datalogs :

BEFORE : enrichment of 0.74 lambda, at 930?C

115431


AFTER : enrichment of 0.8 lambda, at 870?C

115432

Hello guys,
Quick update : I went to my tuner, we put the stock map back on the car with regular gas and went for a quick spin around, tracking the car datalogs. We noticed the same phenomenon on...

Thank you the reply.
I didn't know the car couldn't handle 85% ethanol... I'm really into american cars and all of the previous cars I had could handle without any issue (I don't mod the cars for...

Thank you but I would like to first fix this without any upgraded parts. I don't understand why my Z06 wouldn't run nicely all of a sudden. If one day I want a performance upgrade, I will look...

Thank you for your reply.

I don't think the car request more fuel Under WOT than the fuel system can deliver because :
1) It's a simple Flexfuel tune so I have exactly the same hp/torque as...

Hello Sir,

Did you find a solution to fix the issue ? I am having the exact same thing and I panic because I am living in France and I don't trust anyone working on my car here… So if you could...

Hello everyone,

I have a 2015 C7 Z06 with the 7-speed manual transmission.
I am having the EXACT same thing : huge hesitation in acceleration in 3rd or 4th or 5th gear (even sometimes in 2nd)...