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P0301 Diagnostic Trouble Code Discussion for June 2008

Cylinder 1 Misfire Detected


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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2002 Ford Explorer Sport 4.0L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FMZU7OE62
P0301: misfire cyl.1. vehicle runs verry rough at low rpm(idle). please give all suggestions
June 02, 2008
2003 Audi A4 3.0L Misfire, MIL Lamp on VIN: WAULT68E13
P0301: miss fire 1 cyl. Have a Audi here with a miss fire on #1 cylinder. Switched coil and spark plug with #2 cylinder, miss stayed on 1. I am thinking poss clogged fuel injector (the injector is pulsing).Has anyone seen problems with these injectors clogging? Thanks for reading.
June 05, 2008
2001 Volkswagen Beetle GLX 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWDD21C81
Hi guys this is my first post on iatn and it's driving me crazy, i got it from another shop, they replace coils, spark plugs, mass air flow. The problem is after sitting over night or for long period of time firts 10 sec it will misfire i conect my launch and ...
June 06, 2008
2005 Ford Escape Limited 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMYU94145
P0301: Cylinder Number 1 Misfire Detected. Hi could use some help on this one. Came in with codes listed above. Misfires when you first start in the morning or after sitting for more than an hour. Only at first, after running for more that 30 seconds it runs great. We replaced all six coils and all six...
June 09, 2008
2000 Mercury Mountaineer 5.0L Misfire, MIL Lamp on VIN: 4M2ZU86P5Y
P0301: missfire cylinder1. hello ford techs. this suv came in for over drive light flashing...while road testing engine started missing on cyl.8 found bad injector replaced with new one. cleared codes and test drove again this time eng. is missing on cyl.1 and 4 recheck everthing again....
June 10, 2008
2001 Ford F-150 XL 4.2L Misfire, VIN: 1FTZX17261
Hey Guys, this one has me, I read every single post related to this truck. It came in with Cyl. 1 and 5 missfire, I verified the actual miss, we then replaced the ciol pac, plugs and wires, and did a fuel induction service the truck ran great no miss. It came ...
June 13, 2008
2002 Volkswagen Jetta GLS 1.8L Stall VIN: WVWSE61J42
P0301: misfire cyl 1. hello techs, this VW has us scratching our heads a little. customer stated that the car stalls when ambient temp is high, after stalling the EPC light is illuminated. we scanned for codes and found those 5. the j271 relay described in the code supplies power t...
June 13, 2008
2000 Jeep Cherokee Sport 4.0L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1J4FF48S9Y
P0301: Cylinder 1 Misfire Detected. Car came in for gas smell. We found #1 injector leaking fuel into cylinder. Replaced injector and plugs. Cleared codes and sent it on its way. 3 weeks later came back in with identical trouble codes. Leaning toward cam sensor but it looked fine on the scope an...
June 16, 2008
2002 Jaguar X-Type 3.0L Misfire, MIL Lamp on VIN: CAJEA51C22
P0301: cylinder 1 misfire. after install of new engine have a constant engine light have checked cylinder compression all at 150 psi, spark plugs are new irridiums, snapon fuelkare, checked injector spay by cranking over all have a nice even spray, checked for vacum leaks at intake, inj...
June 18, 2008
2002 Jaguar X-Type 3.0L Misfire, MIL Lamp on VIN: CAJEA51C22
P0301: cylinder 1 misfire. after install of new engine have a constant engine light have checked cylinder compression all at 150 psi, spark plugs are new irridiums, snapon fuelkare, checked injector spay by cranking over all have a nice even spray, checked for vacum leaks at intake, inj...
June 19, 2008
2007 Ford Focus SE 2.0L Hesitation, Misfire, MIL Lamp on VIN: WF0FAKEVIN
P0301: missfire cyl 1. Note veichle only has 9,000Km's on the clock. Customer reported engine lacks power and missfires. Found code for missfire cyl 4. Drove veichle found missfire evident on medium accel when hot or cold. Cleared code, swapped coil #4 with coil #1 and spark plug #...
June 20, 2008
2001 Ford Escape XLS 3.0L Misfire, MIL Lamp on VIN: 1FMYUO4191
P0301: . this car came in last week with missfire cyl no 1,it would only miss after it got hot and a test drive ,so i took a short cut and swapped coil paks to see if miss moved and it didn't so i replaced the injector ran it for hours ,test drove 3 times 6mi each time...
June 23, 2008
2007 Ford Focus SE 2.0L Hesitation, Misfire, MIL Lamp on VIN: WF0FAKEVIN
P0301: missfire cyl 1. Note veichle only has 9,000Km's on the clock. Customer reported engine lacks power and missfires. Found code for missfire cyl 4. Drove veichle found missfire evident on medium accel when hot or cold. Cleared code, swapped coil #4 with coil #1 and spark plug #...
June 23, 2008
2002 Ford Explorer Sport 4.0L Poor Idle Quality, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1FMZU7OE62
P0301: misfire cyl.1. vehicle runs verry rough at low rpm(idle). please give all suggestions
June 02, 2008
2003 Audi A4 3.0L Misfire, MIL Lamp on VIN: WAULT68E13
P0301: miss fire 1 cyl. Have a Audi here with a miss fire on #1 cylinder. Switched coil and spark plug with #2 cylinder, miss stayed on 1. I am thinking poss clogged fuel injector (the injector is pulsing).Has anyone seen problems with these injectors clogging? Thanks for reading.
June 05, 2008
2001 Volkswagen Beetle GLX 1.8L Poor Idle Quality, Misfire, MIL Lamp on VIN: 3VWDD21C81
Hi guys this is my first post on iatn and it's driving me crazy, i got it from another shop, they replace coils, spark plugs, mass air flow. The problem is after sitting over night or for long period of time firts 10 sec it will misfire i conect my launch and ...
June 06, 2008
2005 Ford Escape Limited 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMYU94145
P0301: Cylinder Number 1 Misfire Detected. Hi could use some help on this one. Came in with codes listed above. Misfires when you first start in the morning or after sitting for more than an hour. Only at first, after running for more that 30 seconds it runs great. We replaced all six coils and all six...
June 09, 2008
2000 Mercury Mountaineer 5.0L Misfire, MIL Lamp on VIN: 4M2ZU86P5Y
P0301: missfire cylinder1. hello ford techs. this suv came in for over drive light flashing...while road testing engine started missing on cyl.8 found bad injector replaced with new one. cleared codes and test drove again this time eng. is missing on cyl.1 and 4 recheck everthing again....
June 10, 2008
2001 Ford F-150 XL 4.2L Misfire, VIN: 1FTZX17261
Hey Guys, this one has me, I read every single post related to this truck. It came in with Cyl. 1 and 5 missfire, I verified the actual miss, we then replaced the ciol pac, plugs and wires, and did a fuel induction service the truck ran great no miss. It came ...
June 13, 2008
2002 Volkswagen Jetta GLS 1.8L Stall VIN: WVWSE61J42
P0301: misfire cyl 1. hello techs, this VW has us scratching our heads a little. customer stated that the car stalls when ambient temp is high, after stalling the EPC light is illuminated. we scanned for codes and found those 5. the j271 relay described in the code supplies power t...
June 13, 2008
2000 Jeep Cherokee Sport 4.0L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 1J4FF48S9Y
P0301: Cylinder 1 Misfire Detected. Car came in for gas smell. We found #1 injector leaking fuel into cylinder. Replaced injector and plugs. Cleared codes and sent it on its way. 3 weeks later came back in with identical trouble codes. Leaning toward cam sensor but it looked fine on the scope an...
June 16, 2008
2002 Jaguar X-Type 3.0L Misfire, MIL Lamp on VIN: CAJEA51C22
P0301: cylinder 1 misfire. after install of new engine have a constant engine light have checked cylinder compression all at 150 psi, spark plugs are new irridiums, snapon fuelkare, checked injector spay by cranking over all have a nice even spray, checked for vacum leaks at intake, inj...
June 18, 2008
2002 Jaguar X-Type 3.0L Misfire, MIL Lamp on VIN: CAJEA51C22
P0301: cylinder 1 misfire. after install of new engine have a constant engine light have checked cylinder compression all at 150 psi, spark plugs are new irridiums, snapon fuelkare, checked injector spay by cranking over all have a nice even spray, checked for vacum leaks at intake, inj...
June 19, 2008
2007 Ford Focus SE 2.0L Hesitation, Misfire, MIL Lamp on VIN: WF0FAKEVIN
P0301: missfire cyl 1. Note veichle only has 9,000Km's on the clock. Customer reported engine lacks power and missfires. Found code for missfire cyl 4. Drove veichle found missfire evident on medium accel when hot or cold. Cleared code, swapped coil #4 with coil #1 and spark plug #...
June 20, 2008
2001 Ford Escape XLS 3.0L Misfire, MIL Lamp on VIN: 1FMYUO4191
P0301: . this car came in last week with missfire cyl no 1,it would only miss after it got hot and a test drive ,so i took a short cut and swapped coil paks to see if miss moved and it didn't so i replaced the injector ran it for hours ,test drove 3 times 6mi each time...
June 23, 2008
2007 Ford Focus SE 2.0L Hesitation, Misfire, MIL Lamp on VIN: WF0FAKEVIN
P0301: missfire cyl 1. Note veichle only has 9,000Km's on the clock. Customer reported engine lacks power and missfires. Found code for missfire cyl 4. Drove veichle found missfire evident on medium accel when hot or cold. Cleared code, swapped coil #4 with coil #1 and spark plug #...
June 23, 2008