Number 3 cylinder is misfiring, it could be for several reasons such as a bad spark plug, a bad spark plug wire, a bad distributor cap, a bad rotor, a bad fuel injector, low compression due to a burned valve, large vacuum leak,
Trouble code P0303 means:Cylinder 3 misfire detected
Trouble code P0303 means:Cylinder 3 misfire detected
P0303 : misfire cylinder #3
Trouble code P0303 means:Cylinder 3 misfire detected
Trouble code P0303 means:Cylinder 3 misfire detected
Trouble code P0303 means:Cylinder 3 misfire detected Trouble code P0304 means:Cylinder 4 misfire detected
Trouble code P0303 means: Cylinder 3 Misfire Detected
Trouble code P0303 means:Cylinder 3 misfire detected
Trouble code P0303 means:Cylinder 3 misfire detected
Trouble code P0303 means: Cylinder 3 Misfire Detected
Cylinder #3 misfire
Trouble code P0303 means: Cylinder Number 3 Misfire Detected