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P0301 Diagnostic Trouble Code Discussion for May 2020

Cylinder 1 Misfire Detected


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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2003 Toyota Highlander 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: JTEGF21A63
P0301: Cylinder 1 Misfire Detected. Here's a little back story of the car. Customer came in requesting to replace the converters. He had someone check them and found to be bad. I replaced all of them for him. The cats where indeed clogged and separating. Car started up and ran ok afterwards....
May 25, 2020
2009 Toyota RAV4 2.5L Misfire, MIL Lamp on VIN: 2T3BF33V99
P0301: Missfire Cylinder 1. Hello Techs Got this Rav here that has a misfire on Cyl 1 under load and on after decel. It is a dead miss. If you drive very gently, it will barely misfire, but if you drive it like you stole it, in passing gear Cyl 1 will drop right out. It will then ...
May 25, 2020
2010 Audi Q5 Premium Plus 3.2L Misfire VIN: WA1MKAFP1A
P0301: Cylinder one mifire. We have had an intermittent misfire at idle only on cylinder 1. we have changed plugs, coils and even a new injector. we also found an intake valve not sealing all the time with a pressure wave scope check. with intake off and cranking, you could here it s...
May 26, 2020
2003 Toyota Highlander 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: JTEGF21A63
P0301: Cylinder 1 Misfire Detected. Here's a little back story of the car. Customer came in requesting to replace the converters. He had someone check them and found to be bad. I replaced all of them for him. The cats where indeed clogged and separating. Car started up and ran ok afterwards....
May 26, 2020
2010 Audi Q5 Premium Plus 3.2L Misfire VIN: WA1MKAFP1A
P0301: Cylinder one mifire. We have had an intermittent misfire at idle only on cylinder 1. we have changed plugs, coils and even a new injector. we also found an intake valve not sealing all the time with a pressure wave scope check. with intake off and cranking, you could here it s...
May 28, 2020