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P0301 Diagnostic Trouble Code Discussion for June 2021

Cylinder 1 Misfire Detected


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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2015 Ford Escape SE 1.6L Misfire VIN: 1FMCU0GX4F
P0301: Cylinder 1 misfire detected. This vehicle came in because it died while driving. We found a loose oil filter and found less than a quart of oil in the engine. So we ordered a long block from Ford and installed it. Vehicle left without any issues. This was in February and the vehicle w...
June 12, 2021
2016 Land Rover LR4 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: SALAK2V67G
P0301: misfire cylinder 1. This one has me puzzled, we've tested the PCM for signal to the ignition coils it is a square wave (I guess like on or off) cylinders 3, 4, 5, 6 are the same and cylinder number 2 looks to be about half of the others and cylinder one is non-existent, we be...
June 16, 2021
1999 Toyota Solara SE 3.0L Poor Idle Quality, Misfire VIN: 2T1CF22P2X
P0301: Cylinder 1 Misfire Detected. Hi, Toy techs. I have a 99' Solara V6 1MZFE with #4 cylinder misfiring issue. No spark present at #4 cylinder coil (#1 coil) The customer had already replaced spark plugs and wires (NGK) and still misfires. I checked the compression and fuel injectors a...
June 17, 2021
2016 Land Rover LR4 3.0L Poor Idle Quality, Misfire, MIL Lamp on VIN: SALAK2V67G
P0301: misfire cylinder 1. This one has me puzzled, we've tested the PCM for signal to the ignition coils it is a square wave (I guess like on or off) cylinders 3, 4, 5, 6 are the same and cylinder number 2 looks to be about half of the others and cylinder one is non-existent, we be...
June 23, 2021
2005 Honda Civic LX 1.7L Misfire, MIL Lamp on VIN: 2HGES16595
P0301: Cylinder 1 Misfire Detected. ... Light illuminated on start up in morning. She states only on warmer days-not so sure of that. She drives to my shop(about 5 miles ) and misfire is gone. Scan checked each time and P0301 comes back but car is not misfiring. We replaces 4 plugs, #1 &...
June 28, 2021