hi guys my jeep is running lean cause I can smell it every time I get out of it and the fuel mileage has suffered also. I have changed the TPS sensor, the idle air control valve, I've cleaned the intake, changed the plugs and coil packs. it run and drives but seems to be running a little rough then when I first bought it. it has a 4.7 v8, my next move is o2 sensors. what o2 sensor are which like bank 1 sensor 1 idk which one that is. thanks
My 04 4.7 also smells like fuel from the exhaust at idle with a slight miss but no codes. I installed new plugs last Fall but not sure if I have a bad new plug or maybe coil pack? I read in the FSM the coil pack resistance is .6 - .9 ohms for primary and 6K-9K for secondary but it didn't mention exactly how you're supposed to test this? Can someone please explain this test and I am familiar with my multimeter? Thanks!
Sorry and not trying to hijack this thread but just saw o2 sensors mentioned in the title. Thought I'd mention when I bought my 4.7 exhaust from Nick/Kolak he said if you end up with a bad o2 sensor you best fix/replace it pretty fast before it trashes the cat(s).
How ya doing 86cj74.2L and glad to see you still have your sense of humor!