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P0301 Diagnostic Trouble Code Discussion for August 2014

Cylinder 1 Misfire Detected


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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2011 Volkswagen Jetta 2.0L Poor Idle Quality, Misfire, MIL Lamp on, Lack of Power VIN: 3VW2K7AJ1B
P0301: cylinder 1 misfire. Car runs fine with no problems at all until problem occurs. When driving at highway speeds and attempting to accelerate there is a loss of power and EPC illuminates along with MIL. Car will maintain speed but will not accelerate and engine rpm is very high. Wh...
August 05, 2014
2008 Audi A4 Cabriolet 2.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: WAUAF48H98
car runs perfect when cold and under load. Live data short term fuel trims within spec when running good, seems to be once warmed up short term fuel trim goes all the way to lean 25. with no obvious vacuum leaks. At that point also car will begin to misfire. I...
August 06, 2014
2001 Saturn L300 3.0L Misfire VIN: 1G8JW52R61
P0301: Cylinder 1 Misfire Detected. Car came in with intermittent random misfire. Computer was reprogrammed in past for random misfires by dealer according to tsb. Replaced plugs, coils, and valve cover gaskets. Vacuum at idle is 20in.. Vacuum in drive with ac on is 15in.. Checked for vacuum lea...
August 06, 2014
2001 Saturn L300 3.0L Misfire VIN: 1G8JW52R61
P0301: Cylinder 1 Misfire Detected. Car came in with intermittent random misfire. Computer was reprogrammed in past for random misfires by dealer according to tsb. Replaced plugs, coils, and valve cover gaskets. Vacuum at idle is 20in.. Vacuum in drive with ac on is 15in.. Checked for vacuum lea...
August 07, 2014
2002 Audi A4 Quattro 3.0L Poor Idle Quality VIN: WAULT58E82
P0301: miss fire cylinder 1. Hello Everyone. This car came in with a check engine light. All three cylinders in bank 1 are misfiring. We looked at group 15 on the VAS 5052a and saw all three cylinders miss firing in bank 1 at idle. We looked at group 16 and there are no missfires in bank ...
August 08, 2014
2003 Toyota Matrix 1.8L Excessive Emissions, Poor Idle Quality, Misfire, MIL Lamp on VIN: 2T1KR32E53
P0301: Cylinder 1 Misfire Detected. Ok guys, beatin my head on walls here. 03 matrix with 1.8L. Had to replace an engine in it. Now it has a bad misfire at Idle that gets worse the warmer the vehicle gets. It also starts billowing out white smoke after a while. Coolant pressure test indicates no...
August 09, 2014
2002 Audi A4 Quattro 3.0L Poor Idle Quality VIN: WAULT58E82
P0301: miss fire cylinder 1. Hello Everyone. This car came in with a check engine light. All three cylinders in bank 1 are misfiring. We looked at group 15 on the VAS 5052a and saw all three cylinders miss firing in bank 1 at idle. We looked at group 16 and there are no missfires in bank ...
August 12, 2014
2009 BMW X6 xDrive50i 4.4L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: 5UXFG83519
P0301: Cylinder 1 misfire detected. ... codes p0300-p0301-p0303-p0304-p0305-p0307 Hesitation and Poor Idle Quality we R/R updated injectors updated coils spark plugs fuel pressure sensor pcm software update after the road test the same misfire code came back we CK the both catalytic converter te...
August 19, 2014
2001 GMC Sierra 1500 SL 4.3L Misfire, MIL Lamp on VIN: 1GTEC14W11
P0301: cylinder 1 misfire detected. hi every body, I have this gmc truck coming from other shop, they replaced all the parts mentioned before, misfire on cylinders 1 & 4 still present, checked compression on all cylinders, there are 145 psi on each, also run a leak down test, all cylinders a...
August 22, 2014