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P0301 Diagnostic Trouble Code Discussion for September 2014

Cylinder 1 Misfire Detected


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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2003 Hyundai Sonata GLS 2.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: KMHWF35H93
P0301: Cylinder 1 Misfire Detected. This car had same symptoms a year ago. All cylinders indicate misfire. Car was returned this year but while codes were present, motor ran well, reset MIL status and after a few days the problem reoccurred, vehicle was returned but still runs fine. Are EVAP val...
September 03, 2014
2003 Hyundai Sonata GLS 2.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: KMHWF35H93
P0301: Cylinder 1 Misfire Detected. This car had same symptoms a year ago. All cylinders indicate misfire. Car was returned this year but while codes were present, motor ran well, reset MIL status and after a few days the problem reoccurred, vehicle was returned but still runs fine. Are EVAP val...
September 04, 2014
2007 Ford Edge SEL 3.5L Misfire VIN: 2FMDK49C67
Vehicle is shorting coils suspect bad coil driver in PCM is there a good place to buy reman or have repairs done, lots of places on the web but have never used any of them. just seeing if any one has a recommendation over new OE Thanks for the info David
September 05, 2014
2002 Volkswagen Passat GLX 2.8L Poor Idle Quality, Misfire VIN: WVWRH63B72
P0301: Cyl 1 missfire. Hello everyone I have a 2002 VW Passat, 2.8 V6 ATQ engine. Odd Issue, I am a VW veteran and this one has me stumped. Vehicle has new bank 1 and 2 cam adjusters, timing is dead on, used cam bar and lock pin to time engine along with the proper procedure. at Idl...
September 11, 2014
2006 Mini Cooper 1.6L MIL Lamp on VIN: WMWRC33556
P0301: misfiring cylinder 1. Five months ago, this car came in with a front O2 sensor code and misfire code for cylinder #1. New O2 sensor took care of sensor problem, but the ignored misfire cylinder #1 code returned. Misted secondary ignition and observed problems: replaced coil and wir...
September 19, 2014
2005 Subaru Forester XT 2.5L Misfire, MIL Lamp on VIN: JF1SG696X5
P0301: Cylinder 1 Misfire Detected. Hello everyone, I have a subaru that started off as a hard start and a mil setting the misfires on the primary bank. Well first I found the fuel pressure leaking into the #3 intake runner. Made the estimate and installed the regulator and a fresh set of plugs....
September 21, 2014
2010 Chevrolet Express 2500 4.8L Misfire, MIL Lamp on VIN: 1GCZGFBA0A
P0301: found it in generic codes miss is on 1 cylinder. even pulled valve cover to check valve springs - did cyl leak down - only 10% leak on #1 . did see tsb for valve cover. but blocked vacuum to it still had miss. did cylinder balance test - #1 did not change. used tech 2 to perform injector balance test also. a...
September 23, 2014
2005 Subaru Forester XT 2.5L Misfire, MIL Lamp on VIN: JF1SG696X5
P0301: Cylinder 1 Misfire Detected. Hello everyone, I have a subaru that started off as a hard start and a mil setting the misfires on the primary bank. Well first I found the fuel pressure leaking into the #3 intake runner. Made the estimate and installed the regulator and a fresh set of plugs....
September 25, 2014