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P0303 Diagnostic Trouble Code Discussion for October 2009

Cylinder 3 Misfire Detected


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Trouble Ticket Help Requests for DTC P0303
Help Request Posted
1998 Dodge Ram 1500 Truck 3.9L Misfire, MIL Lamp on VIN: 1B7HC16X6W
P0303: Cylinder 3 Misfire Detected. The engine runs fine under all other operating conditions but when put under a load, such as 3rd gear with cruising speed of 50mph, roughly 2400 rpm. the engine sets fault codes for cyl. 3&5 misfire. The cylinder heads have been replaced as well as the ple...
October 05, 2009
2002 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC52442
P0303: Cylinder 3 Misfire Detected. I am lost on this one. Cranks but will not start. Backfire out of intake sometimes. Sometimes catches a little bit like on one cylinder but that is it. Seems as if the timing is way off. Started by swapping a new ignition module, no change. Took it back and ...
October 06, 2009
2004 Kia Optima LX 2.4L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: KNAGD12684
P0303: Cylinder 3 Misfire Detected. car was brought in running rough at idle. Also due for timeing belt change. Changed timeing belt . We now have A dead cyl #3. Compression is 150 on all cyl .spark is good and strong on cyl #3. we've switched the coils ( No change) we've switched injectors (No ...
October 06, 2009
2001 Dodge Dakota Sport 3.9L Hesitation, Surge, Misfire, MIL Lamp on VIN: 1B7GL22X51
P0303: Cylinder 3 Misfire Detected. help guys, have this 01 dakota thats a tough fix for sure, has an intermitent roughness, missing, feels almost as if it's loading up when driveing, but only occures once in a while, looses power drasticly, bucks and kicks when it happens, back fires through in...
October 09, 2009
2001 Audi A6 Quattro 2.8L MIL Lamp on VIN: WAUEH64B21
P0303: missfire 3. ... Vehicle came in with engine noise, rough idle and mil lamp on. We found p0300, p0304, p0305, p0306, p1347 and p1522 stored. Left bank timing chain tenisoner had failed. We replaced that along with the timing belt. The engine now runs smoothly and is quiet ...
October 11, 2009
2002 Acura MDX 3.5L Misfire VIN: 2HNYD18602
P0303: Cylinder 3 Misfire Detected. Hello everyone and thanks for the help with this one. I have this 2002 Acura MDX in for the light being on. It has 3 misfire codes stored(3,5,6) and a P1456, evap emissions failure. This engine seems to run fine and i can't see that it misfires at all. The spa...
October 12, 2009
2001 Audi A6 Quattro 2.8L MIL Lamp on VIN: WAUEH64B21
P0303: missfire 3. ... Vehicle came in with engine noise, rough idle and mil lamp on. We found p0300, p0304, p0305, p0306, p1347 and p1522 stored. Left bank timing chain tenisoner had failed. We replaced that along with the timing belt. The engine now runs smoothly and is quiet ...
October 13, 2009
1996 Volkswagen Jetta GL 2.0L Poor Idle Quality, Misfire VIN: 3VWRA81HXT
P0303: cyl 3 miss. MIL will illuminate for misfire codes on cyl's 2 & 3, with very intermittent rough idle noted. The customer had complained of poor running on the freeway at times but I haven't experienced it. It does seem to have a slight "bump" in the idle most o...
October 15, 2009
1999 Ford Escort ZX2 Cool Coupe 2.0L Misfire, MIL Lamp on VIN: 3FAKP1138X
P0303: 3misfire. the customer came back due to the aftermarket bottom pulley was convex instead of concave, stopped running, but installed new belt,replaced pulley and runns excellent,compression good,fuel good, the car has absolutly no miss fire at idle or hwy, engine light f...
October 20, 2009
2002 Ford Explorer Eddie Bauer 4.0L Misfire VIN: 1FMZU74E92
P0303: Cylinder 3 misfire. Hey guys, thanks in advance. Customer had this explorer towed in, and said bank one convertor was diagnosed as being clogged. This after spending over 1000 dollars on 4 oxygen sensors. The same shop wanted to put the covertor assembly on for another 1500 dolla...
October 28, 2009
2002 Ford Explorer Eddie Bauer 4.0L Misfire VIN: 1FMZU74E92
P0303: Cylinder 3 misfire. Hey guys, thanks in advance. Customer had this explorer towed in, and said bank one convertor was diagnosed as being clogged. This after spending over 1000 dollars on 4 oxygen sensors. The same shop wanted to put the covertor assembly on for another 1500 dolla...
October 29, 2009
1998 Dodge Ram 1500 Truck 3.9L Misfire, MIL Lamp on VIN: 1B7HC16X6W
P0303: Cylinder 3 Misfire Detected. The engine runs fine under all other operating conditions but when put under a load, such as 3rd gear with cruising speed of 50mph, roughly 2400 rpm. the engine sets fault codes for cyl. 3&5 misfire. The cylinder heads have been replaced as well as the ple...
October 05, 2009
2002 Chevrolet Cavalier 2.2L No Start VIN: 1G1JC52442
P0303: Cylinder 3 Misfire Detected. I am lost on this one. Cranks but will not start. Backfire out of intake sometimes. Sometimes catches a little bit like on one cylinder but that is it. Seems as if the timing is way off. Started by swapping a new ignition module, no change. Took it back and ...
October 06, 2009
2004 Kia Optima LX 2.4L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: KNAGD12684
P0303: Cylinder 3 Misfire Detected. car was brought in running rough at idle. Also due for timeing belt change. Changed timeing belt . We now have A dead cyl #3. Compression is 150 on all cyl .spark is good and strong on cyl #3. we've switched the coils ( No change) we've switched injectors (No ...
October 06, 2009
2001 Dodge Dakota Sport 3.9L Hesitation, Surge, Misfire, MIL Lamp on VIN: 1B7GL22X51
P0303: Cylinder 3 Misfire Detected. help guys, have this 01 dakota thats a tough fix for sure, has an intermitent roughness, missing, feels almost as if it's loading up when driveing, but only occures once in a while, looses power drasticly, bucks and kicks when it happens, back fires through in...
October 09, 2009
2001 Audi A6 Quattro 2.8L MIL Lamp on VIN: WAUEH64B21
P0303: missfire 3. ... Vehicle came in with engine noise, rough idle and mil lamp on. We found p0300, p0304, p0305, p0306, p1347 and p1522 stored. Left bank timing chain tenisoner had failed. We replaced that along with the timing belt. The engine now runs smoothly and is quiet ...
October 11, 2009
2002 Acura MDX 3.5L Misfire VIN: 2HNYD18602
P0303: Cylinder 3 Misfire Detected. Hello everyone and thanks for the help with this one. I have this 2002 Acura MDX in for the light being on. It has 3 misfire codes stored(3,5,6) and a P1456, evap emissions failure. This engine seems to run fine and i can't see that it misfires at all. The spa...
October 12, 2009
2001 Audi A6 Quattro 2.8L MIL Lamp on VIN: WAUEH64B21
P0303: missfire 3. ... Vehicle came in with engine noise, rough idle and mil lamp on. We found p0300, p0304, p0305, p0306, p1347 and p1522 stored. Left bank timing chain tenisoner had failed. We replaced that along with the timing belt. The engine now runs smoothly and is quiet ...
October 13, 2009
1996 Volkswagen Jetta GL 2.0L Poor Idle Quality, Misfire VIN: 3VWRA81HXT
P0303: cyl 3 miss. MIL will illuminate for misfire codes on cyl's 2 & 3, with very intermittent rough idle noted. The customer had complained of poor running on the freeway at times but I haven't experienced it. It does seem to have a slight "bump" in the idle most o...
October 15, 2009
1999 Ford Escort ZX2 Cool Coupe 2.0L Misfire, MIL Lamp on VIN: 3FAKP1138X
P0303: 3misfire. the customer came back due to the aftermarket bottom pulley was convex instead of concave, stopped running, but installed new belt,replaced pulley and runns excellent,compression good,fuel good, the car has absolutly no miss fire at idle or hwy, engine light f...
October 20, 2009
2002 Ford Explorer Eddie Bauer 4.0L Misfire VIN: 1FMZU74E92
P0303: Cylinder 3 misfire. Hey guys, thanks in advance. Customer had this explorer towed in, and said bank one convertor was diagnosed as being clogged. This after spending over 1000 dollars on 4 oxygen sensors. The same shop wanted to put the covertor assembly on for another 1500 dolla...
October 28, 2009
2002 Ford Explorer Eddie Bauer 4.0L Misfire VIN: 1FMZU74E92
P0303: Cylinder 3 misfire. Hey guys, thanks in advance. Customer had this explorer towed in, and said bank one convertor was diagnosed as being clogged. This after spending over 1000 dollars on 4 oxygen sensors. The same shop wanted to put the covertor assembly on for another 1500 dolla...
October 29, 2009