My engine is running rough at an idle, I can smell gas fumes all the time. It backfires while under a load on acceleration. I've changed the fuel pump and filter. Changed plugs, wires, cap, rotor, and coil. Changed air filter, it is only a week old and is black on the inside from the flames coming out of the throttle body. I've changed the O2 sensor also the EGR valve. Plugs are carboned up after only a few days. Engine doesn't use oil or smoke. What else could be my problem. I've also changed the vacuum lines. Thanks for the help.
have the same problem?
Thursday, June 11th, 2015 AT 1:42 PM