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P0301 Diagnostic Trouble Code Discussion for March 2011

Cylinder 1 Misfire Detected


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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2006 Ford Freestyle SEL 3.0L Poor Idle Quality, Surge, Misfire VIN: 1FMZK02166
P0301: cylinder 1 misfire. ... emissions. Scanned the vehicle and it had a p0174 p0300 p0301 p0302 and p0303. Checked for a vacuum leak found none. Hooked up the smoke machine and only found smoke leaking out of the egr valve. I removed the intake to check the plugs. some one replaced t...
March 01, 2011
2001 Toyota Avalon XLS 3.0L Misfire, MIL Lamp on VIN: 4T1BF28B51
P0301: Cylinder 1 Misfire Detected. Help with this cold intermittent misfire bank 1... Only on first start of the day, runs rough until closed loop, then STF turn B1 -18 B2 0 and runs great. It's like it's very rich and runs poor until fuel trim is corrected for B1. I have checked VVt solenoids ...
March 01, 2011
2003 Hyundai Accent GL 1.6L Misfire VIN: KMHCF35C43
P0301: Cylinder 1 Misfire Detected. I check tps sensor test good replace spark plugs & wires replace crank sensor because its the trigger for coils check for vacuum leaks found none car will run good for weeks at a time with no misfire.thanks for your help.
March 09, 2011
1998 Audi A6 Quattro 2.8L Poor Idle Quality, Misfire VIN: WAUBA24B0W
... misfire with code p0300,p0301,p0302,p0303. we found vacuum leaks on the intake so we replaced pipes that are cracked and performed a tune up, replaced spark plugs,ignition coil, wires. After the tune up car run fine customer picked up next day same codes c...
March 14, 2011
2004 Jeep Grand Cherokee Limited 4.7L MIL Lamp on VIN: 1J4GW48N64
P0301: Cylinder 1 Misfire Detected. code still sets intermittently. we are having a reflash done right now. we had the customer run the car one day without the ac on and the code still set. Seems to set code at idle or soon after startup.If anyone has had anything like this some info would be gr...
March 16, 2011
2003 Land Rover Range Rover HSE 4.4L Misfire, MIL Lamp on VIN: SALME11413
P0301: misfire in 1 cylinder. ... engine just installed. the problem were having is that the same codes are called up every time. p1300, p0301, p0306. replaced all plugs, the coils on #3 and #6 replaced. pcm sets pending codes during road testing however i never feel any misfire during the...
March 17, 2011
2002 Jaguar X-Type 3.0L Misfire, MIL Lamp on VIN: SAJEA51C82
I have a jag that has been here multiple times for the same codes, misfires, cylinder 1-3-5 (bank 1) appears to run normal to a certain degree over 2000 rpms, fuel trims in closed loop indicate that bank 1 is full lean, and bank 2 is full rich. We dropped the ...
March 23, 2011
1996 BMW 328i 2.8L Hesitation, Misfire, MIL Lamp on VIN: WBACD4321T
P0301: testing and results. For all BMW techs need help with this car has rough idle every two or three minutes and emissions go high almost 2500 ppm and hesitates for a while for about half a minute and then the emissions go down after that runs normal for another three minutes then emi...
March 24, 2011
2005 Volkswagen Passat GLS 4 Motion 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WVWDD63B95
P0301: Cylinder 1 misfire. Hi, I can't believe I am asking such a seemingly simple question. But after 3 hours I cannot find the PCV valve on this car. I have googled it, searched Alldata, and looked all over the vehicle. Everything says it is under the intake manifold. I still cant fin...
March 24, 2011
2003 Land Rover Range Rover HSE 4.4L Misfire, MIL Lamp on VIN: SALME11413
P0301: misfire in 1 cylinder. ... engine just installed. the problem were having is that the same codes are called up every time. p1300, p0301, p0306. replaced all plugs, the coils on #3 and #6 replaced. pcm sets pending codes during road testing however i never feel any misfire during the...
March 28, 2011
2001 Acura CL Premium 3.2L No Start, Poor Idle Quality, Stall, Misfire, MIL Lamp on VIN: 19UYA42431
P0301: Cylinder 1 Misfire Detected. Hi all, Had a car come in, customer complained that randomly, while sitting at a stop light for 1 min or more, would run rough and die. Restart after few minutes. Scanned vehicle and found the P1071 fuel trim code. Cleared code drove car for a couple days and ...
March 30, 2011
2000 Dodge Dakota 3.9L MIL Lamp on VIN: 1B7FL26X6Y
P0301: Cylinder 1 Misfire Detected. What are we missing?next step is to check the flexplate but we might be reaching.how can I see what is making the codes appear without symptoms and at cruising speed. fuel trims are +- 8%.Thanks for your time, Thanks in advance for your help
March 31, 2011
2004 Jeep Grand Cherokee Limited 4.7L MIL Lamp on VIN: 1J4GW48N64
P0301: Cylinder 1 Misfire Detected. code still sets intermittently. we are having a reflash done right now. we had the customer run the car one day without the ac on and the code still set. Seems to set code at idle or soon after startup.If anyone has had anything like this some info would be gr...
March 31, 2011
2000 Volkswagen Golf GL 1.9L Misfire, excess white smoke VIN: 9BWGF21J5Y
P0301: 16685 Cylinder 1 missfire detected intermittent. Hello and thanks for taking the time to read this. This 2000 Golf TDI smokes and missfire badly especially when started cold, (0F) and the smoke/missfire diminishes as it warms up. The smoke is white and therefore unburnt fuel. Running in the shop with a leaki...
March 31, 2011