I just bought my 93 ranger with the 2.3 4 cylinder. It has new plugs wires and coil pack. Sometimes when starting it up it will run perfect and others the CEL comes on and it s backfires. The codes pulled say #4 misfire and uncontrolled rpms. I can't figure out why it only sometimes does it.
i have a 97 mazda 626 lx 2.5Liter V6 and ever since i bought it, it has backfired. about 2 weeks ago i was driving and got stuck in the snow. i had to work it pretty hard to get out and now if i don't press the gas just right it will stall and not go anywhere. right now its barely getting me to...