mutineer

I had a code for miss fire on # 4 changed coil with a used one. ( my daughter drove it with out telling me for awhile) after changing coil now I have random misfire and lean on bank 1 and bank 2 I tried to spray carb cleaner around manifold and it didn't seem to make a difference... any ideas is it possible that by driving it ruined O2 sensors? any ideas would help

mutineer

anyone know what the fuel pressure should be? I think that may be my problem

mutineer

anyone know what the fuel pressure should be? I think that maybe my issue

tech2

check the freeze frame data to determine the rpm that the lean dtc set.

check the fuel trim with a scan tool at idle and at 2500 rpm. if its adding fuel more than 10% at idle but dropps under %10 at 2500 rpm...it is a vacuum leak

if its adding at both idle and 2500 rpm check fuel pressure at was posted previously.