Does the Evo Have a built in Limp Mode?

I still can't figure out why my car won't lean out past 10.0 AF, there are no boost leaks (holds 25psi), has new wideband and new front 02 sensor, car is tuned perfectly and form one day to the next it took a crap.

Compression is between 153-160 psi across the board.

 

Malfunctioning Wideband perhaps.
Put ur stock map back in and see what it reads.

 

Are you throwing any codes? Did you put in some bad gas?

 

what is your octane flag at? Maybe a bad widband as well.

CJ

 

That will definitely tell you if you are going into the low octane/timing maps.