Thanks for the suggestion....
But do you know if there is a way to accurately measure injector duty cycles on this motor?.....
The reason I am asking is the fact that ALL 4 cylinders on the right bank (Bank 2) seem to be fouling....(over-rich).
When I scan the data I get the Upstream O2 reading in the 400's....and yet the Downstream one seems to be switching correctly....
The left bank sensors seem to be calling for a lean mixture to compensate...
I will need to buy yet another Upstream sensor to better daignose this issue...but killing four O2 sensors is not going to make me a happy guy
.
It definitely appears to be a simple case of a failed Upstream O2 sensor...I know that...but three sensors in the same location over 6 months is definitely not the normal rate of failure on this type of motor.
Any other ideas?
Thanks...Phil.