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P0301 Diagnostic Trouble Code Discussion for May 2015

Cylinder 1 Misfire Detected


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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2002 Bentley Arnage RL 6.7L Excessive Emissions, Poor Idle Quality, Misfire VIN: SCBLC31E72
P0301: misfire cyl 1. Vehicle came in from a used car dealership for emission testing.Doing the diagnostics on it find that the gas cap is missing (code p0455) number 1 cyl will just stop firing.Shut the car off and then start it up again and is running fine.Switch coils and it sti...
May 05, 2015
2000 Ford E-250 Econoline 5.4L Misfire VIN: 1FTNE24L4Y
P0301: miss fire 1 cylinder. van came back with p0301 pulled spark plug and ground tip was bent. Looked in cylinder with camera and could not see anything in cylinder. Replaced plug and ran good. No noises in engine, fuel trim and timing was good. Came back again with p0301 plug ground be...
May 06, 2015
2003 Audi A4 1.8L Poor Idle Quality, Hesitation, Misfire, MIL Lamp on VIN: WAULC68E53
P0301: testing and results. as stated in repair history, vehicle came in previously a few months ago for a #4 misfire, coil good, outputting strong spark (on all 4 as a matter of fact), replaced ignition coil harness due to some dry rot of the harness but no change. fast forward to now, ...
May 18, 2015
2009 Subaru Outback 2.5i Limited 2.5L MIL Lamp on VIN: 4S4BP66C59
We rebuilt the engine in this Suby and since we did, on heavy acceleration the check engine light blinks and all 4 cylinder misfire codes are stored . There is no recognizable misfire or any other drivability issues. The coil, crank and cam sensors were replac...
May 21, 2015
2010 Hyundai Accent GLS 1.6L Misfire VIN: KMHCN4AC0A
P0301: . this car come from used car dealer misfire number 1 at the time it misfire there is no signal to injector number one i cut and slide wire from ecm to injector still not working by the way when it cold all injector working fine until engine warm up then it will...
May 22, 2015
2006 Subaru B9 Tribeca Limited 3.0L Misfire, MIL Lamp on VIN: 4S4WX85C96
P0301: Cylinder 1 Misfire Detected. looking for help...car came in with all cyl on bank 1 misfiring...cleaned all solenoids and only cyl 1 came back..i have battery voltage on both pink and and yellow wires that go to injector, went to computer and found voltgage where needed..anyone else come a...
May 26, 2015
2010 Hyundai Accent GLS 1.6L Misfire VIN: KMHCN4AC0A
P0301: . this car come from used car dealer misfire number 1 at the time it misfire there is no signal to injector number one i cut and slide wire from ecm to injector still not working by the way when it cold all injector working fine until engine warm up then it will...
May 27, 2015
2006 Subaru B9 Tribeca Limited 3.0L Misfire, MIL Lamp on VIN: 4S4WX85C96
P0301: Cylinder 1 Misfire Detected. looking for help...car came in with all cyl on bank 1 misfiring...cleaned all solenoids and only cyl 1 came back..i have battery voltage on both pink and and yellow wires that go to injector, went to computer and found voltgage where needed..anyone else come a...
May 27, 2015
2003 Volkswagen Jetta GL 1.8L Poor Idle Quality, Hesitation, Stall, Misfire, MIL Lamp on VIN: 3VWRE69M73
P0301: Cylinder 1 misfire. ... issue with an 03 Volkswagen Jetta 1.8t auto. The car started out with a few vacuum leaks and misfires like all these motors do, all leaks and running issues were fixed for a few months, then the vehicle came back with a MIL for a p0411 for the secondary ai...
May 31, 2015