2002 jeep wrangler 6cyl check engine light came on the other day. Error 204,300,301,302, I have replaced plugs, coil pack, throttle position sensor, and one of the o2 sensors bank1 sensor 2. Jeep runs ok at ideal, give it gas and i get ton of smoke and the smell of gas? Any idea what to try next? Thanks Stephen
Smoke combined with the smell of gas probably means it's running rich. In conjunction with those codes (#4 injector error and multiple misfires cyl 1 and 2), you're probably having injector issues, either leaky, incorrect spray pattern/amount, or stuck open. Have you tried running a fuel injector/fuel system cleaner through?
2003 Jeep Wrangler X 4.0L ~ 107,000 miles
Smoke from tail pipe, and yes I just threw I'm some injector cleaner on Tuesday, I thought I had some bad gas from Cumberland farm.. Was hoping it was just that... Like I said not sure what else to try. Thanks for replays Stephen
I never will put any type of injector cleaner or additives to my fuel/oil. I just don't feel it's needed. If I were you, I'd pull the injectors. It sounds like you have one stuck open if you have the smell of raw fuel.
98 TJ sport 4.0L I6 356,000 miles.
No Engine, axle, tranny, or t-case rebuilds.
Check out my 5.3 swap in progress here!