I have DTC code P0301 cycl. #1 misfire, what does this mean...

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Question by Stephanie
Submitted on 11/22/2003
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I have DTC code P0301 cycl. #1 misfire, what does this mean and what needs to be fixed

Answer by Bob
Submitted on 1/19/2004
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It means one of your sparkplugs is misfiring. Remedy is to replace all sparkplugs.

Answer by Hicham
Submitted on 6/8/2004
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Could a P0301 mean that the ignition, fuel, and air filters have to be replaced as well?

Answer by Dan Reed
Submitted on 10/30/2004
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P0301 is caused by a misfile on cylinder 1 (2 would be P0302 and so on..) Fuel injector, wiring Plugs, cap, and rotor, or wires. Often NOT a air or fuel filter.

Answer by mahoneybologna
Submitted on 12/20/2004
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I have the same problem and have found out a lil information. First change the spark plugs, and check if that was it. Then change spark plug wires, and check if that was it. If it still is not running correctly, then it is either a coil pack, or a blown head gasket. These are known for their love of blowing head gaskets. Check the compresion in the cylinder and see if that is it. Hope this helped i havent found out which was my problem. I kno it isnt plugs or wires:(.

Answer by sam
Submitted on 6/29/2005
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If you get code P0301 make sure to check the module, spark plugs, plug wires and injector.

Answer by redbone
Submitted on 6/29/2005
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This is usually the spark plug coil pack. THis has happend 2x on my 2000 mercury sable.

Answer by Buickguy
Submitted on 12/15/2005
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It could be the wire between the coil/coil packs (whatever your car has), or, the connection itself. The problem lies between the tip of the spark plug to the end of the wire where it attaches to the coil. Change that plug, if it comes again, then the problem is in the wire. Either way, if it is time for plugs and wires, that will fix it.

Answer by AlexAMT
Submitted on 2/1/2006
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It can also be your ignition coil. do a tune up first. if that doesnt help, It can be your ignition coil. If that doesn't help then it can be a fuel ingector.

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