Quote:
Originally Posted by post_break
Yep that's the same tune I ran and threw those codes. I have the aem wideband analog signal wire connected to the rear evap sensor, which is why those codes are being flagged. Custom map O result.
I can't connect the wideband to the rear o2 input because I have flex fuel connected to that input.
Same car, same setup, your newest tune you resent vs other tune from someone else. As soon as I fire up the car it throws evap codes high low voltage. Which makes sense because there is no evap voltage, its the ethanol sensor voltage and the car is like wtf.
I will try the tune you just sent me and report back. Maybe the logic for the evap needs to be adjusted so any voltage is in the normal range? Maybe that's how the other tuner does it?
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The tune was throwing check engine lights for P0452 and P0453?
OK, understand now. Sorry I usually just shut off all the evap codes (14 in total) for FlexFuel as we have seen that down the road (1000 miles or more) you can possibly get other evap codes, such as P0451 or any of the other 11 evap codes.
In total there are 14 different codes, as we shut them all off because of the situations we have seen above. Rare but they happen.
Cheers,
William Knose
Delicious Tuning