I have a studder in the engine while accelerating. It did throw a multiple misfire code as well as a running rich code. I have replaced the spark plugs, the coil packs as well as its housing. checked compression as well as fuel pressure and those two things checked out good. I also replaced the fuel pump prior to attacking the ignition. After all of that I am still having the problem but I have not had any codes come up. any help would be much appreciated. Thank you.
Aug 26, 2008 at 9:56 PM