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P0301 Diagnostic Trouble Code Discussion for September 2005

Cylinder 1 Misfire Detected


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Trouble Ticket Help Requests for DTC P0301
Help Request Posted
2000 Mazda Protege DX 1.6L Misfire VIN: JM1BJ2225Y
P0301: Cylinder 1 Misfire Detected. Car came in for bad misfire and check engine light flashing. Checked plugs, both wires, and both coils, all good. Put noid light on all injector connectors all operate normally except cyl 1. Light is very bright and doesn't pulse like other cyls. Have seen thi...
September 01, 2005
1997 Chevrolet C1500 4.3L Misfire VIN: 1GTDM19W3V
P0301: Cylinder 1 Misfire Detected. This vehicle came in with an SES light coming on going up a hill. I road tested the vehicle and found the vehicle has a dead misfire on cyl 1 as soon as you reach 100km As soon as you slow down below 100 km the miss stops. I monitored fuel pressure during the ...
September 02, 2005
1997 Chevrolet C1500 4.3L Misfire VIN: 1GTDM19W3V
P0301: Cylinder 1 Misfire Detected. This vehicle came in with an SES light coming on going up a hill. I road tested the vehicle and found the vehicle has a dead misfire on cyl 1 as soon as you reach 100km As soon as you slow down below 100 km the miss stops. I monitored fuel pressure during the ...
September 06, 2005
1999 Ford Expedition Eddie Bauer 5.4L Misfire VIN: 1FMRU17L2X
P0301: Missfire. I have no injector pulse to cylinder #1. All other cylinders are fine. I replaced ECU to repair problem...had someone program ECU. Same problem...no injectr pulse #1...I wasn't there when this was done...just wonderng if anyone has seen bad injector blow ECU o...
September 15, 2005
1996 Mercury Grand Marquis LS 4.6L Misfire VIN: 2MELM75W8T
P0301: 1 Cyl Misfire code. Hi Again Ford Techs . I have a #1 cyl misfire intermittently. After I first checked for codes , I road tested vehicle 10 miles while monitoring misfire counter . Found no misfire. Looked through the misc data values The only thing that looked out of specs was ...
September 15, 2005
1998 Dodge Grand Caravan SE 3.0L Misfire, MIL Lamp on VIN: 2B4GP4436W
P0301: Cylinder 1 Misfire Detected. Help !!! Dodge Misfire Code from Hell, This van runs fine other than a slight rough idle. Everytime we do something to it and clear the codes it takes 75 to 100 miles of driving for the check engine light to come on with this same #1 misfire code. It had the h...
September 19, 2005
1998 Ford F-150 XL 4.2L Excessive Emissions, Poor Idle Quality, Misfire VIN: 2FTZF1725W
P0301: Misfire cyc 1. Truck came in with P0301 found tracking in boot for #1 replaced plug and wire. No Inprovement tested comp # 1&2 equal @ 170 did injector pressure drop #1&5 equal. Scoped injector patern For voltage and current patterns compared to #2 appear the same wh...
September 19, 2005
1999 Toyota Avalon XL 3.0L Surge, Misfire, MIL Lamp on VIN: 4T1BF18B0X
P0301: Cylinder 1 Misfire Detected. This car has been in a couple of times for misfire codes. Found intake gasket leaking. Replace gaskets clear codes and let customer drive , code return after a short time.It seems to have active misfire counts when egr is on. please send ideas thanks for you t...
September 20, 2005