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P0301 Diagnostic Trouble Code Discussion for March 2013

Cylinder 1 Misfire Detected


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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2005 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMZU73K75
P0301: cylinder 1 misfire. 2005 Explorer 4.0 came to us after being at another shop. Came in with rough idle and misfires. The other shop replaced plugs wires and egr valve and intake gaskets. We checked plugs and found they used autolites so we replaced with motorcraft no change. We re...
March 04, 2013
2005 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMZU73K75
P0301: cylinder 1 misfire. 2005 Explorer 4.0 came to us after being at another shop. Came in with rough idle and misfires. The other shop replaced plugs wires and egr valve and intake gaskets. We checked plugs and found they used autolites so we replaced with motorcraft no change. We re...
March 06, 2013
2007 Chevrolet Aveo LS 1.6L Misfire VIN: KL1TD65657
P0301: Cylinder 1 Misfire Detected. So this Aveo is a used car on the lot. Didn't run good when we first got it but was low on fuel and then ran fine. So it sat on the lot for a while then sold it but noticed coolant leak before it got picked up. So we changed the timing belt and water pump. So ...
March 07, 2013
1997 Toyota Camry CE 3.0L Hesitation, Misfire, MIL Lamp on VIN: 4T1BF22K3V
P0301: Cylinder 1 Misfire Detected. Hi all need some help,i have an intermittent bank 1 misfire it seems to only happen when near or at normal operating temp.i have checked the timing and its dead on t belt was replaced about 30k ago and tension was good.i also checked fuel pressure as the car w...
March 11, 2013
2007 Volkswagen Jetta 2.5 2.5L Misfire, MIL Lamp on VIN: 3VWPG71K77
P0301: cylinder 1 misfire. Thanks in advance for help. Car came in with mil on, and intermittent misfire. Since it is a intermittent problem, we decided to swap coils 3 with 2. Tested all injector resistance, all tested same. looked for wiring issues in obvious places. found no problems...
March 11, 2013
1997 Toyota Camry CE 3.0L Hesitation, Misfire, MIL Lamp on VIN: 4T1BF22K3V
P0301: Cylinder 1 Misfire Detected. Hi all need some help,i have an intermittent bank 1 misfire it seems to only happen when near or at normal operating temp.i have checked the timing and its dead on t belt was replaced about 30k ago and tension was good.i also checked fuel pressure as the car w...
March 12, 2013
1998 Ford F-150 Lariat 4.6L Misfire VIN: 1FTZX18W5W
P0301: Cylinder 1 Misfire. ... Engine With 190000 Miles But Truck Has 234000. Anyways, Was Running Fine For A Few Days But Then Not Running So Well. Code P0301. Checked Plug And Wire And Although Looked OK Changed Them Anyways. Same Problem. Swapped Coil With One Off Used Engine Same Th...
March 13, 2013
2003 Volkswagen Passat GLS 1.8L Misfire VIN: WVWVD63B13
P0301: Misfire cylinder 1. Engine just started exhibiting a misfire at idle issue. No external vacuum leaks were found. Moving the coils around did not change any codes. Could hear what sounded like a vacuum leak coming from the pressure diverter valve. Removed it and found that the ins...
March 13, 2013
2006 GMC Envoy Denali 5.3L Misfire
P0301: Cylinder 1 Misfire Detected. hello everybody a little help please before i go any further 2006 5.3 gmc envoy misfire cyl 1 installed compression gauge and cranked over first pulse it read 110psi released pressure and tried again got a reading of 0psi removed valve cover to observe no loos...
March 21, 2013
2007 Chevrolet Aveo LS 1.6L Misfire VIN: KL1TD65657
P0301: Cylinder 1 Misfire Detected. So this Aveo is a used car on the lot. Didn't run good when we first got it but was low on fuel and then ran fine. So it sat on the lot for a while then sold it but noticed coolant leak before it got picked up. So we changed the timing belt and water pump. So ...
March 25, 2013
2002 Ford Windstar SE 3.8L Poor Idle Quality, Misfire VIN: 2FMZA52472
P0301: cylinder 1 misfire. Vehicle will do different things at different times, The boss drove it first and said it was missing bad under a load, The next day I drive it and it only notice light misfires at idle, Cylinder contribution test shows random cylinder misfires across all cylin...
March 26, 2013
2006 Mercedes-Benz C230 Sport 2.5L Misfire, Sparg plug damage VIN: WDBRF52HX6
P0301: Cyl. Number one misfire. First saw car aprox. 5,000 miles ago. Found cyl.# one spark plug ground electrode bent down and contacting center electrode. It was the correct plug for the car. No evidence of any damage or debri on the plug or in the cylinder ( used bore scope ) Installed al...
March 26, 2013
2000 Ford Expedition Eddie Bauer 5.4L Poor Idle Quality, Misfire VIN: 1FMPU18L4Y
P0301: Misfire cyl 1. Hello all... I have a 2000 expedition 5.4L engine that seems to be possessed. Last week, customer had it towed in for a NO START. Fuel pump was bad. Replaced fuel pump and fuel filter. Upon confirming the fix, noticed a coolant leak on the front of Bank 1 (Pa...
March 27, 2013
2007 Audi A3 2.0L Misfire VIN: WAUHF78PX7
In past 1 year and 4 mos this vehicle had misfire issues. Initially we changed all 4 plugs and coils with OEM as it is common. Did air filter and mass air cleaning. Seemed to clear up. Then came back running badly a month later. We found bad High Pressure Fuel...
March 28, 2013
2005 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMZU73K75
P0301: cylinder 1 misfire. 2005 Explorer 4.0 came to us after being at another shop. Came in with rough idle and misfires. The other shop replaced plugs wires and egr valve and intake gaskets. We checked plugs and found they used autolites so we replaced with motorcraft no change. We re...
March 04, 2013
2005 Ford Explorer XLT 4.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: 1FMZU73K75
P0301: cylinder 1 misfire. 2005 Explorer 4.0 came to us after being at another shop. Came in with rough idle and misfires. The other shop replaced plugs wires and egr valve and intake gaskets. We checked plugs and found they used autolites so we replaced with motorcraft no change. We re...
March 06, 2013
2007 Chevrolet Aveo LS 1.6L Misfire VIN: KL1TD65657
P0301: Cylinder 1 Misfire Detected. So this Aveo is a used car on the lot. Didn't run good when we first got it but was low on fuel and then ran fine. So it sat on the lot for a while then sold it but noticed coolant leak before it got picked up. So we changed the timing belt and water pump. So ...
March 07, 2013
1997 Toyota Camry CE 3.0L Hesitation, Misfire, MIL Lamp on VIN: 4T1BF22K3V
P0301: Cylinder 1 Misfire Detected. Hi all need some help,i have an intermittent bank 1 misfire it seems to only happen when near or at normal operating temp.i have checked the timing and its dead on t belt was replaced about 30k ago and tension was good.i also checked fuel pressure as the car w...
March 11, 2013
2007 Volkswagen Jetta 2.5 2.5L Misfire, MIL Lamp on VIN: 3VWPG71K77
P0301: cylinder 1 misfire. Thanks in advance for help. Car came in with mil on, and intermittent misfire. Since it is a intermittent problem, we decided to swap coils 3 with 2. Tested all injector resistance, all tested same. looked for wiring issues in obvious places. found no problems...
March 11, 2013
1997 Toyota Camry CE 3.0L Hesitation, Misfire, MIL Lamp on VIN: 4T1BF22K3V
P0301: Cylinder 1 Misfire Detected. Hi all need some help,i have an intermittent bank 1 misfire it seems to only happen when near or at normal operating temp.i have checked the timing and its dead on t belt was replaced about 30k ago and tension was good.i also checked fuel pressure as the car w...
March 12, 2013
1998 Ford F-150 Lariat 4.6L Misfire VIN: 1FTZX18W5W
P0301: Cylinder 1 Misfire. ... Engine With 190000 Miles But Truck Has 234000. Anyways, Was Running Fine For A Few Days But Then Not Running So Well. Code P0301. Checked Plug And Wire And Although Looked OK Changed Them Anyways. Same Problem. Swapped Coil With One Off Used Engine Same Th...
March 13, 2013
2003 Volkswagen Passat GLS 1.8L Misfire VIN: WVWVD63B13
P0301: Misfire cylinder 1. Engine just started exhibiting a misfire at idle issue. No external vacuum leaks were found. Moving the coils around did not change any codes. Could hear what sounded like a vacuum leak coming from the pressure diverter valve. Removed it and found that the ins...
March 13, 2013
2006 GMC Envoy Denali 5.3L Misfire
P0301: Cylinder 1 Misfire Detected. hello everybody a little help please before i go any further 2006 5.3 gmc envoy misfire cyl 1 installed compression gauge and cranked over first pulse it read 110psi released pressure and tried again got a reading of 0psi removed valve cover to observe no loos...
March 21, 2013
2007 Chevrolet Aveo LS 1.6L Misfire VIN: KL1TD65657
P0301: Cylinder 1 Misfire Detected. So this Aveo is a used car on the lot. Didn't run good when we first got it but was low on fuel and then ran fine. So it sat on the lot for a while then sold it but noticed coolant leak before it got picked up. So we changed the timing belt and water pump. So ...
March 25, 2013
2002 Ford Windstar SE 3.8L Poor Idle Quality, Misfire VIN: 2FMZA52472
P0301: cylinder 1 misfire. Vehicle will do different things at different times, The boss drove it first and said it was missing bad under a load, The next day I drive it and it only notice light misfires at idle, Cylinder contribution test shows random cylinder misfires across all cylin...
March 26, 2013
2006 Mercedes-Benz C230 Sport 2.5L Misfire, Sparg plug damage VIN: WDBRF52HX6
P0301: Cyl. Number one misfire. First saw car aprox. 5,000 miles ago. Found cyl.# one spark plug ground electrode bent down and contacting center electrode. It was the correct plug for the car. No evidence of any damage or debri on the plug or in the cylinder ( used bore scope ) Installed al...
March 26, 2013
2000 Ford Expedition Eddie Bauer 5.4L Poor Idle Quality, Misfire VIN: 1FMPU18L4Y
P0301: Misfire cyl 1. Hello all... I have a 2000 expedition 5.4L engine that seems to be possessed. Last week, customer had it towed in for a NO START. Fuel pump was bad. Replaced fuel pump and fuel filter. Upon confirming the fix, noticed a coolant leak on the front of Bank 1 (Pa...
March 27, 2013
2007 Audi A3 2.0L Misfire VIN: WAUHF78PX7
In past 1 year and 4 mos this vehicle had misfire issues. Initially we changed all 4 plugs and coils with OEM as it is common. Did air filter and mass air cleaning. Seemed to clear up. Then came back running badly a month later. We found bad High Pressure Fuel...
March 28, 2013