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P0303 Diagnostic Trouble Code Discussion for October 2007

Cylinder 3 Misfire Detected

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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
1999 Toyota Solara SE 3.0L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 2T1CF22P4X
P0303: Cylinder 3 Misfire Detected. This vehicle came in with a running rough, black smoke, exhaust leak, blinking check engine light, no power. Checked the basics, code lead to rear bank misfire. This vehicle has the coil over on the front of the engine and wires going to rear cylinders, checke...
October 05, 2007
2002 Jeep Grand Cherokee Laredo 4.0L Misfire VIN: 1J4GW48SX2
P0303: Cylinder 3 Misfire Detected. cleared codes, ran it, drove it cold & hot, 40 miles all together, only got occasional misfires on 3, 4, & 5. leak down & compression test good, checked & replaced plugs, drove again, still occasional misfires, mostly on cyl 3. swapped plugs #1...
October 06, 2007
2002 Chevrolet Impala 3.8L Misfire VIN: 2G1WF55K52
P0303: cylinder 3 misfire. ... pulled spark plugs and found was worn out. replaced plugs, and road tested. misfire p0300 then p0303. replaced spark plug wires and test drove again. Did some better but under hard acceleration misfiring and and no power....
October 08, 2007
2001 Dodge Stratus SE 2.4L Misfire, MIL Lamp on VIN: 4B3AG42GX1
P0303: Cylinder 3 Misfire Detected. Hi, Car came in for a 90k service. Car was running ok. Replaced timing belt, balance shaft belt waterpump, spark plugs etc... Start cat after repair & noticed misfire on cylinder #3. Recheck all timing marks, swap ignition coil, injectors, perform compres...
October 09, 2007
2003 Audi A6 Quattro 4.2L Excessive Emissions, Misfire, MIL Lamp on VIN: WAUML64B13
P0303: misfire cylinder 3. Customer previously had the Audi to another shop. They installed 8 new coils and an air mass meter,-genuine Audi parts. The Audi will idle steady and not misfire. While watching the misfire counter on the vag scanner you can see misfires in all 8 cylinders whe...
October 29, 2007
2001 Subaru Outback L.L. Bean 3.0L Misfire, MIL Lamp on VIN: 4S3BH80651
P0303: Cylinder 3 Misfire Detected. Hello Subaru Tech's. This 6 cyl has a random misfire ONLY when first started in the morning. It does it every morning & only once a day. Its has had new spark plugs & regular maint. I can't find anything obvious. Have searched the archives & forums...
October 31, 2007