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P0302 Diagnostic Trouble Code Discussion for December 2008

Cylinder 2 Misfire Detected


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Trouble Ticket Help Requests for DTC P0302
Help Request Posted
1999 BMW 323i 2.5L Misfire, MIL Lamp on VIN: WBAAM3335X
P0302: 2 misfire. This car came to us with a complaint of running rough and loss of power. Due to the mileage we recommended a fuel injection service (throttle body cleaning, pressurized injector cleaning, tank additive and IV drip), spark plugs, and of all things, four O2 sens...
December 04, 2008
2003 Ford Expedition Eddie Bauer 4.6L Excessive Emissions, Misfire, MIL Lamp on VIN: 1FMRU17W13
Well, got this expedition in couple days ago. All the codes listed above were present. Engine skipping, low power. Scan PID's showed Bank 1 running very rich- LTFT- -25%, Bank 2 running lean- LTFT- +15% to +25%. Vacuum gauge shows a steady 18in. Fuel pressure ...
December 05, 2008
1996 Dodge Dakota 3.9L MIL Lamp on VIN: 1B7GL23X1T
P0302: Cylinder 2 Misfire Detected. Hi folks, Customer has no complaint about engine performance. The MIL won't stay off. After clearing codes the MIL will come on after a day or so, setting codes PO300 Thru PO306. I noticed fuel pressure on the low side, so I replaced the fuel pump assembly w...
December 10, 2008
1999 Ford Windstar SE 3.8L egr passage VIN: 2FMZA5242X
P0302: misrfire 2. thanks in advanced, have a windstar i know the egr passages are clogged except cylinder #2. if any one has cleaned the egr passages out before. wandering if i could do it with out removing the intake. or will that not be sufficant enough not sure how the passa...
December 11, 2008
2000 Volkswagen Jetta GL 2.0L Cuts out, Misfire, MIL Lamp on VIN: 3VWRC29MXY
Ok I have a 2000 Jetta with a 2.0 AEG motor and a 5 speed. Cust complaint is of a mil light on and sometimes flashing. Codes revealed misfire on all cylinders. Further investigation shows new plugs,wires, coil, maf and all are OE VW parts. Test drive the car a...
December 12, 2008
2000 Volkswagen Jetta GL 2.0L Cuts out, Misfire, MIL Lamp on VIN: 3VWRC29MXY
Ok I have a 2000 Jetta with a 2.0 AEG motor and a 5 speed. Cust complaint is of a mil light on and sometimes flashing. Codes revealed misfire on all cylinders. Further investigation shows new plugs,wires, coil, maf and all are OE VW parts. Test drive the car a...
December 13, 2008
2000 Ford Escort ZX2 2.0L Misfire, MIL Lamp on VIN: 3FAKP1133Y
P0302: cylinder 2 misfire. This ZX2 has a dead miss on cylinder 2. The ecu is not grounding the injector. the injector - wire has continuity back to the ecu. I am pretty sure the ECU is bad but not sure of what the CMP waveform should look like, there are no CMP codes. The cyl 2 is just...
December 16, 2008
2000 Infiniti I30 3.0L Misfire VIN: JNKCV51E65
P0302: Cylinder 2 Misfire Detected. Car came in a few weeks ago with a p302 another tech replaced the coil that was almost new and was not misfiring actively at that time. Car came back in today misfiring on cyl 2 with code current. I backprobed injector with noid light and had pulse,checked spa...
December 17, 2008
2000 Infiniti I30 3.0L Misfire VIN: JNKCV51E65
P0302: Cylinder 2 Misfire Detected. Car came in a few weeks ago with a p302 another tech replaced the coil that was almost new and was not misfiring actively at that time. Car came back in today misfiring on cyl 2 with code current. I backprobed injector with noid light and had pulse,checked spa...
December 18, 2008
1998 Ford Explorer Eddie Bauer 4.0L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FMZU32E1W
P0302: engine miss fire 2 cyl. This explorer has a bad missfire on cold start and with long term fuel trims at 25 on both banks I am changing the intake gaskets (seals). What I'm not sure of is I found a plastic vaccume line that has melted against the exhaust and can NOT find the source. I...
December 19, 2008
1998 Ford Explorer Eddie Bauer 4.0L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FMZU32E1W
P0302: engine miss fire 2 cyl. This explorer has a bad missfire on cold start and with long term fuel trims at 25 on both banks I am changing the intake gaskets (seals). What I'm not sure of is I found a plastic vaccume line that has melted against the exhaust and can NOT find the source. I...
December 22, 2008
2001 Volkswagen Beetle GLX 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWDD21C71
... here, just looking for some confirmation from some of the Euro-car guys. This Beetle came in with a customer complaint of rough idle. Had a pending p0171 code which became a hard code on the test drive. Found that big y-shaped vacuum tube on the back of th...
December 24, 2008
2000 Subaru Legacy GT Limited 2.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 4S3BE6564Y
P0302: Cylinder 2 Misfire Detected. We performed a cylinder head gasket job on this vehicle. We have seen it now 3 times with a MIL on with cylinder misfire codes stored. Cyl 2 and 3 being the affected cylinders. I ran through the basics and made sure ignition components were good. When I curren...
December 26, 2008
1998 Dodge B1500 5.2L MIL Lamp on, p302 MISFIRE VIN: 2B6HB11YXW
P0302: Cylinder 2 Misfire Detected. This vehicle came in with multi codes and a injector failing the ohm test. After replacing the PCM and the injector we did not get the multi codes but are still getting a P302 code, the missfire is very slight but is there. We moved wires and plugs and injecto...
December 29, 2008
1999 BMW 323i 2.5L Misfire, MIL Lamp on VIN: WBAAM3335X
P0302: 2 misfire. This car came to us with a complaint of running rough and loss of power. Due to the mileage we recommended a fuel injection service (throttle body cleaning, pressurized injector cleaning, tank additive and IV drip), spark plugs, and of all things, four O2 sens...
December 04, 2008
2003 Ford Expedition Eddie Bauer 4.6L Excessive Emissions, Misfire, MIL Lamp on VIN: 1FMRU17W13
Well, got this expedition in couple days ago. All the codes listed above were present. Engine skipping, low power. Scan PID's showed Bank 1 running very rich- LTFT- -25%, Bank 2 running lean- LTFT- +15% to +25%. Vacuum gauge shows a steady 18in. Fuel pressure ...
December 05, 2008
1996 Dodge Dakota 3.9L MIL Lamp on VIN: 1B7GL23X1T
P0302: Cylinder 2 Misfire Detected. Hi folks, Customer has no complaint about engine performance. The MIL won't stay off. After clearing codes the MIL will come on after a day or so, setting codes PO300 Thru PO306. I noticed fuel pressure on the low side, so I replaced the fuel pump assembly w...
December 10, 2008
1999 Ford Windstar SE 3.8L egr passage VIN: 2FMZA5242X
P0302: misrfire 2. thanks in advanced, have a windstar i know the egr passages are clogged except cylinder #2. if any one has cleaned the egr passages out before. wandering if i could do it with out removing the intake. or will that not be sufficant enough not sure how the passa...
December 11, 2008
2000 Volkswagen Jetta GL 2.0L Cuts out, Misfire, MIL Lamp on VIN: 3VWRC29MXY
Ok I have a 2000 Jetta with a 2.0 AEG motor and a 5 speed. Cust complaint is of a mil light on and sometimes flashing. Codes revealed misfire on all cylinders. Further investigation shows new plugs,wires, coil, maf and all are OE VW parts. Test drive the car a...
December 12, 2008
2000 Volkswagen Jetta GL 2.0L Cuts out, Misfire, MIL Lamp on VIN: 3VWRC29MXY
Ok I have a 2000 Jetta with a 2.0 AEG motor and a 5 speed. Cust complaint is of a mil light on and sometimes flashing. Codes revealed misfire on all cylinders. Further investigation shows new plugs,wires, coil, maf and all are OE VW parts. Test drive the car a...
December 13, 2008
2000 Ford Escort ZX2 2.0L Misfire, MIL Lamp on VIN: 3FAKP1133Y
P0302: cylinder 2 misfire. This ZX2 has a dead miss on cylinder 2. The ecu is not grounding the injector. the injector - wire has continuity back to the ecu. I am pretty sure the ECU is bad but not sure of what the CMP waveform should look like, there are no CMP codes. The cyl 2 is just...
December 16, 2008
2000 Infiniti I30 3.0L Misfire VIN: JNKCV51E65
P0302: Cylinder 2 Misfire Detected. Car came in a few weeks ago with a p302 another tech replaced the coil that was almost new and was not misfiring actively at that time. Car came back in today misfiring on cyl 2 with code current. I backprobed injector with noid light and had pulse,checked spa...
December 17, 2008
2000 Infiniti I30 3.0L Misfire VIN: JNKCV51E65
P0302: Cylinder 2 Misfire Detected. Car came in a few weeks ago with a p302 another tech replaced the coil that was almost new and was not misfiring actively at that time. Car came back in today misfiring on cyl 2 with code current. I backprobed injector with noid light and had pulse,checked spa...
December 18, 2008
1998 Ford Explorer Eddie Bauer 4.0L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FMZU32E1W
P0302: engine miss fire 2 cyl. This explorer has a bad missfire on cold start and with long term fuel trims at 25 on both banks I am changing the intake gaskets (seals). What I'm not sure of is I found a plastic vaccume line that has melted against the exhaust and can NOT find the source. I...
December 19, 2008
1998 Ford Explorer Eddie Bauer 4.0L Excessive Emissions, Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FMZU32E1W
P0302: engine miss fire 2 cyl. This explorer has a bad missfire on cold start and with long term fuel trims at 25 on both banks I am changing the intake gaskets (seals). What I'm not sure of is I found a plastic vaccume line that has melted against the exhaust and can NOT find the source. I...
December 22, 2008
2001 Volkswagen Beetle GLX 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWDD21C71
... here, just looking for some confirmation from some of the Euro-car guys. This Beetle came in with a customer complaint of rough idle. Had a pending p0171 code which became a hard code on the test drive. Found that big y-shaped vacuum tube on the back of th...
December 24, 2008
2000 Subaru Legacy GT Limited 2.5L Poor Idle Quality, Misfire, MIL Lamp on VIN: 4S3BE6564Y
P0302: Cylinder 2 Misfire Detected. We performed a cylinder head gasket job on this vehicle. We have seen it now 3 times with a MIL on with cylinder misfire codes stored. Cyl 2 and 3 being the affected cylinders. I ran through the basics and made sure ignition components were good. When I curren...
December 26, 2008
1998 Dodge B1500 5.2L MIL Lamp on, p302 MISFIRE VIN: 2B6HB11YXW
P0302: Cylinder 2 Misfire Detected. This vehicle came in with multi codes and a injector failing the ohm test. After replacing the PCM and the injector we did not get the multi codes but are still getting a P302 code, the missfire is very slight but is there. We moved wires and plugs and injecto...
December 29, 2008