Been noticing my car has been running rich when car on a cold start. Afr are like 10 and eventually it would stall out sometimes. After a while of driving the afr do rise back up to a normal level and some times it makes the car buck back and forth on partial throttle. Been tuned on speed density and was wondering if there was a way in evoscan to check if the omni 4 bar map sensor was on its way out. Haven't done a boost/vacuum leak test yet but that is the first thing I will be checking soon.

 

This 10 AFR is without any throttle?

 

This just started happening or right after switching to speed density?

 

This just started happening, 10 AFR is without applying any throttle. I just hope that its an vacuum leak of some sort.

 

. Any hunting for idle?