Hi
I have a problem with a 2015 Jeep Wrangler that has Air intake and catback system only. I have not messed with injectors data nor with InjPw vs Fuel Mass tables. NN is on and the problem is that the AFR is always at 19 ! Even WOT enrichment does not seems to do anything when I floor it and it remains the same.
Usually under closed loop condition AFR should be around 14.7 where with this Jeep it idles at 19 and the LTFT is showing -10%, I've never encountered such issue before and would appreciate any guidance.
I am suspecting a faulty wide band sensor and would try the sensor on another car today and perhaps installing the sensor in the down-pipe just to role out any doubts in that area
Many thanks