gents,

needs some inputs. After installing a supplied Maggietune and doing changes to it for WOT and such it won't go back into closed loop anymore. Runs pig rich at idle around 9.9 AFR and in scanner shows OL-decel all the time.

I checked all parameters, all sensors, all data and all is OK, STFT's and O'2 are generated and mV hopping up and down all as it should be, no MIL codes either.

reloaded stock programm and it does the same, loaded a EForce tune from same year and does the same. Hmmm?

of course did all the Camaros tricks with unhooking battery for a short moment but no avail, stays in scanner at OL-decel but STFT build nicely up in Histogramm, did a few write entires same thing.

give me all you inputs please, blows my mind