Day 1-check engine light came on, checked the codes, and it said missfire on 1 and crankshaft position sensor, changed plugs and wires, and the sensor, reset the codes, and the engine was still really rough, and codes popped back up. Day 2-unplugged the battery to reset whole system, started car and still ran rough, missfiring and engine shaking hard, and is now backfiring under the hood. However no codes came up, pulled numbers 1 and 4 plugs and 1 is in much worse shape. At a lost for where to go next. Coil pack? Could I have burned a piston ring? Please tell me its not a valve!
have the same problem?
Monday, September 27th, 2010 AT 3:05 PM