Originally Posted by Mike Wevrick
* went on around 2900 miles
* CEL P0303 - Misfire in Cyl 3
* dealer: Mile One (MD)
* mechanic reset ECU, test-drove car
Just got a P0303 again. 61,000 miles. Local garage checked and reset it for free. They asked if I had changed the spark plugs recently. Yes, but 4 months and 2000 miles ago, and the car has been running fine (drove it for 2 days with the CEL and didn't notice anything abnormal). Just a random misfire I guess ...