New spark plugs and plug wires. Do not gap the plugs, they are factory gapped. If you stick a feeler gauge in them you will ruin the platinum plating.
Trouble code P0303 means: Cylinder 3 Misfire Detected
Trouble code P0303 means: Cylinder 3 Misfire Detected
Trouble code P0300 means: Multiple Cylinder Misfire Trouble code P0302 means: Cylinder 2 Misfire Detected Trouble code P0303 means: Cylinder 3 Misfire Detected I would change plugs and wires
Random misfire, cylinder 2 misfire, and cylinder 3 misfire. see related question below.
Trouble code P0303 means:Cylinder 3 misfire detected
Stop by http://www.coloradofans.com there are different people that have had that problem. you can probably message them personally and see how they got to that problem. P0300= Random/ multiple cylinder misfire detected P0301= Misfire detected- cylinder #1 P0302= Misfire detected- cylinder #2 P0303= Misfire detected- cylinder #3 P0304= Misfire detected- cylinder #4 p0305= Misfire detected- cylinder #5 P.S. These are Diagnostic trouble codes, not vechicle id numbers.
Trouble code P0303 means: Cylinder Number 3 Misfire Detected
P0303 is cylinder #3 misfire. P0300 would be random misfire. Either way you need to diagnose the case of a misfire. Check spark plugs, plug wires(if equipped), cylinder compression, fuel inectors, and wiring.
Diagnostic Trouble Code (DTC) P0303: Engine Misfire Detected (Cylinder 3)
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