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Advanced Tuner
C7 z06 adding fuel in reduced power mode?
So I'm tuning a 2015 Z06 and reduced power mode keeps popping up. The AFR in PE jumps from 12:1 to 10.45:1. Any way around this? Haven't ran into it before
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more details as to why your are getting REP
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Advanced Tuner
Yeah, it's strange. It will come on before the car is even started. Cars seems to run fine with no codes for the most part. I did just have a low fuel pressure code pop up so we'll look into that but that seems unrelated if the car is having this pop up before it's even running.
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Advanced Tuner
It doesn't seem to be adding fuel, that was just that catalyst overtemp coming on
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Tuner
So you pulled the codes and COT was the only code? Usually reduced power mode will be accompanied by a CEL. Since its on before you start the car seems like a sensor is failing its diagnostic test.
Last edited by GMCfast; 07-30-2020 at 07:55 AM.