Join Now
International Automotive Technicians Network

P0303 Diagnostic Trouble Code Discussion for January 2014

Cylinder 3 Misfire Detected


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0303
Help Request Posted
2000 Hyundai Elantra GLS 2.0L Misfire
P0303: Cylinder 3 Misfire Detected. ... 3 cylinders and a P0300 - Random misfires. Traced the problem to worn plugs (never had a tuneup and had water in the gas. We did the tuneup - plugs and ignition wires, drained the remaining fuel from the tank, put in mid-range fuel and flushed out any rema...
January 07, 2014
2006 Kia Optima LX 2.4L Misfire, MIL Lamp on VIN: KNAGE123X6
P0303: Cylinder 3 Misfire Detected. Hello everyone and thanks for taking the time to look at this. Got a very strange one here. We got this vehicle at 133000 miles with a rod knock, very minor. Removed and rebuilt engine. Installed engine and everything was perfect. Vehicle ran great, no check e...
January 08, 2014
2006 Kia Optima LX 2.4L Misfire, MIL Lamp on VIN: KNAGE123X6
P0303: Cylinder 3 Misfire Detected. Hello everyone and thanks for taking the time to look at this. Got a very strange one here. We got this vehicle at 133000 miles with a rod knock, very minor. Removed and rebuilt engine. Installed engine and everything was perfect. Vehicle ran great, no check e...
January 12, 2014
2007 Ford F-250 Super Duty XLT 5.4L Poor Idle Quality, Stall, MIL Lamp on VIN: 1FTSX20537
P0303: Fault Cylinder 3 Misfire Detected. Need some help gentlemen, we are working on this f250 and it is giving us a lot of grief. Truck originally came in running rough, misfiring, and would ocasionally stall, there was also an obvious rattling noise from the front of the motor inside the timing cov...
January 14, 2014
1997 Volkswagen Jetta GL 2.0L Stall VIN: 3VWWB81HXV
P0303: cyl 3 misfire. hello everyone this vehicle has a very intermitten stall from a stop like a traffic light then when taking off it will stall, then may be an extended or labored restart. i have driven this vehicle for a week to and from work without any problems. cust has driv...
January 14, 2014
2005 Audi S4 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WUARL48HX5
P0303: Cylinder 3 misfire. Car came in on wrecker for no start. Checked and found bad fuel pump. Installed new pump and filter. Car started right up. Was missing terribly with check engine light on.Scanned and retrieved misfire faults.Checked spark plugs and coils , were good. Customer ...
January 16, 2014
2000 Honda Accord EX 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGCG2252Y
P0303: Cylinder 3 Misfire Detected. The MIL is flashing during idle and cruise. There's also a code P0306, but there wasn't room to list all the codes in the entry form for this help request. All cylinders have good compression, but spark plugs look partly sooty, as if sometimes they are gas fou...
January 24, 2014
2008 Subaru Impreza 2.5i 2.5L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: JF1GH61698
Really stumped on this one. Vehicle idles very poor and will die at idle in gear. After stalling it hard starts and will not fire unless the throttle is held down. Here's a list of what I've checked so far: -MAF - tried swaping a new one in with the same resu...
January 24, 2014
2000 Honda Accord EX 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGCG2252Y
P0303: Cylinder 3 Misfire Detected. The MIL is flashing during idle and cruise. There's also a code P0306, but there wasn't room to list all the codes in the entry form for this help request. All cylinders have good compression, but spark plugs look partly sooty, as if sometimes they are gas fou...
January 26, 2014
2000 Honda Accord LX 3.0L No Start, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGCG1641Y
P0303: Cylinder 3 Misfire Detected. This Accord will not start hot after a hot soak. The Main relay has been removed and inspected on the circuit board. The ignition system hasn't been checked past the fact that we have good spark when the problem is there. When we cracked the fuel line we get v...
January 27, 2014
2006 Volkswagen Touareg 3.2L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: WVGZG77L66
P0303: Cyl 3 mis. Vehicle was drove in and dropped off for poor running, stall and mil on. Notice "related repair history". Vehicle would not start when brought in. Suspected fouled plugs. Have experience with vw and have the VCDS for them. But do not have much experien...
January 30, 2014
2000 Hyundai Elantra GLS 2.0L Misfire
P0303: Cylinder 3 Misfire Detected. ... 3 cylinders and a P0300 - Random misfires. Traced the problem to worn plugs (never had a tuneup and had water in the gas. We did the tuneup - plugs and ignition wires, drained the remaining fuel from the tank, put in mid-range fuel and flushed out any rema...
January 07, 2014
2006 Kia Optima LX 2.4L Misfire, MIL Lamp on VIN: KNAGE123X6
P0303: Cylinder 3 Misfire Detected. Hello everyone and thanks for taking the time to look at this. Got a very strange one here. We got this vehicle at 133000 miles with a rod knock, very minor. Removed and rebuilt engine. Installed engine and everything was perfect. Vehicle ran great, no check e...
January 08, 2014
2006 Kia Optima LX 2.4L Misfire, MIL Lamp on VIN: KNAGE123X6
P0303: Cylinder 3 Misfire Detected. Hello everyone and thanks for taking the time to look at this. Got a very strange one here. We got this vehicle at 133000 miles with a rod knock, very minor. Removed and rebuilt engine. Installed engine and everything was perfect. Vehicle ran great, no check e...
January 12, 2014
2007 Ford F-250 Super Duty XLT 5.4L Poor Idle Quality, Stall, MIL Lamp on VIN: 1FTSX20537
P0303: Fault Cylinder 3 Misfire Detected. Need some help gentlemen, we are working on this f250 and it is giving us a lot of grief. Truck originally came in running rough, misfiring, and would ocasionally stall, there was also an obvious rattling noise from the front of the motor inside the timing cov...
January 14, 2014
1997 Volkswagen Jetta GL 2.0L Stall VIN: 3VWWB81HXV
P0303: cyl 3 misfire. hello everyone this vehicle has a very intermitten stall from a stop like a traffic light then when taking off it will stall, then may be an extended or labored restart. i have driven this vehicle for a week to and from work without any problems. cust has driv...
January 14, 2014
2005 Audi S4 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WUARL48HX5
P0303: Cylinder 3 misfire. Car came in on wrecker for no start. Checked and found bad fuel pump. Installed new pump and filter. Car started right up. Was missing terribly with check engine light on.Scanned and retrieved misfire faults.Checked spark plugs and coils , were good. Customer ...
January 16, 2014
2000 Honda Accord EX 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGCG2252Y
P0303: Cylinder 3 Misfire Detected. The MIL is flashing during idle and cruise. There's also a code P0306, but there wasn't room to list all the codes in the entry form for this help request. All cylinders have good compression, but spark plugs look partly sooty, as if sometimes they are gas fou...
January 24, 2014
2008 Subaru Impreza 2.5i 2.5L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: JF1GH61698
Really stumped on this one. Vehicle idles very poor and will die at idle in gear. After stalling it hard starts and will not fire unless the throttle is held down. Here's a list of what I've checked so far: -MAF - tried swaping a new one in with the same resu...
January 24, 2014
2000 Honda Accord EX 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGCG2252Y
P0303: Cylinder 3 Misfire Detected. The MIL is flashing during idle and cruise. There's also a code P0306, but there wasn't room to list all the codes in the entry form for this help request. All cylinders have good compression, but spark plugs look partly sooty, as if sometimes they are gas fou...
January 26, 2014
2000 Honda Accord LX 3.0L No Start, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGCG1641Y
P0303: Cylinder 3 Misfire Detected. This Accord will not start hot after a hot soak. The Main relay has been removed and inspected on the circuit board. The ignition system hasn't been checked past the fact that we have good spark when the problem is there. When we cracked the fuel line we get v...
January 27, 2014
2006 Volkswagen Touareg 3.2L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: WVGZG77L66
P0303: Cyl 3 mis. Vehicle was drove in and dropped off for poor running, stall and mil on. Notice "related repair history". Vehicle would not start when brought in. Suspected fouled plugs. Have experience with vw and have the VCDS for them. But do not have much experien...
January 30, 2014
2000 Hyundai Elantra GLS 2.0L Misfire
P0303: Cylinder 3 Misfire Detected. ... 3 cylinders and a P0300 - Random misfires. Traced the problem to worn plugs (never had a tuneup and had water in the gas. We did the tuneup - plugs and ignition wires, drained the remaining fuel from the tank, put in mid-range fuel and flushed out any rema...
January 07, 2014
2006 Kia Optima LX 2.4L Misfire, MIL Lamp on VIN: KNAGE123X6
P0303: Cylinder 3 Misfire Detected. Hello everyone and thanks for taking the time to look at this. Got a very strange one here. We got this vehicle at 133000 miles with a rod knock, very minor. Removed and rebuilt engine. Installed engine and everything was perfect. Vehicle ran great, no check e...
January 08, 2014
2006 Kia Optima LX 2.4L Misfire, MIL Lamp on VIN: KNAGE123X6
P0303: Cylinder 3 Misfire Detected. Hello everyone and thanks for taking the time to look at this. Got a very strange one here. We got this vehicle at 133000 miles with a rod knock, very minor. Removed and rebuilt engine. Installed engine and everything was perfect. Vehicle ran great, no check e...
January 12, 2014
2007 Ford F-250 Super Duty XLT 5.4L Poor Idle Quality, Stall, MIL Lamp on VIN: 1FTSX20537
P0303: Fault Cylinder 3 Misfire Detected. Need some help gentlemen, we are working on this f250 and it is giving us a lot of grief. Truck originally came in running rough, misfiring, and would ocasionally stall, there was also an obvious rattling noise from the front of the motor inside the timing cov...
January 14, 2014
1997 Volkswagen Jetta GL 2.0L Stall VIN: 3VWWB81HXV
P0303: cyl 3 misfire. hello everyone this vehicle has a very intermitten stall from a stop like a traffic light then when taking off it will stall, then may be an extended or labored restart. i have driven this vehicle for a week to and from work without any problems. cust has driv...
January 14, 2014
2005 Audi S4 4.2L Poor Idle Quality, Misfire, MIL Lamp on VIN: WUARL48HX5
P0303: Cylinder 3 misfire. Car came in on wrecker for no start. Checked and found bad fuel pump. Installed new pump and filter. Car started right up. Was missing terribly with check engine light on.Scanned and retrieved misfire faults.Checked spark plugs and coils , were good. Customer ...
January 16, 2014
2000 Honda Accord EX 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGCG2252Y
P0303: Cylinder 3 Misfire Detected. The MIL is flashing during idle and cruise. There's also a code P0306, but there wasn't room to list all the codes in the entry form for this help request. All cylinders have good compression, but spark plugs look partly sooty, as if sometimes they are gas fou...
January 24, 2014
2008 Subaru Impreza 2.5i 2.5L Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: JF1GH61698
Really stumped on this one. Vehicle idles very poor and will die at idle in gear. After stalling it hard starts and will not fire unless the throttle is held down. Here's a list of what I've checked so far: -MAF - tried swaping a new one in with the same resu...
January 24, 2014
2000 Honda Accord EX 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGCG2252Y
P0303: Cylinder 3 Misfire Detected. The MIL is flashing during idle and cruise. There's also a code P0306, but there wasn't room to list all the codes in the entry form for this help request. All cylinders have good compression, but spark plugs look partly sooty, as if sometimes they are gas fou...
January 26, 2014
2000 Honda Accord LX 3.0L No Start, Poor Idle Quality, Misfire, MIL Lamp on VIN: 1HGCG1641Y
P0303: Cylinder 3 Misfire Detected. This Accord will not start hot after a hot soak. The Main relay has been removed and inspected on the circuit board. The ignition system hasn't been checked past the fact that we have good spark when the problem is there. When we cracked the fuel line we get v...
January 27, 2014
2006 Volkswagen Touareg 3.2L Excessive Emissions, Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: WVGZG77L66
P0303: Cyl 3 mis. Vehicle was drove in and dropped off for poor running, stall and mil on. Notice "related repair history". Vehicle would not start when brought in. Suspected fouled plugs. Have experience with vw and have the VCDS for them. But do not have much experien...
January 30, 2014