Does anyone with cams get a P0300 intermittent misfire code after extended idle?

[ghunt81]

I've had cams in my car for 7 years. Every now and then I get a check engine light and it's always P0300 (intermittent misfire), especially if I let it idle too long.

Is this common?

 

[StockishS197]

Not uncommon. Some tuners disable the P0300 code for this reason or reduce the misfire sensitivity to help prevent it.

 

[whitmanink]

are u sure a coil pack isnt going out?

 

[Forty61]

I get random misfire codes on my car, it comes and goes as it pleases. Sometimes it's twice in a week, sometimes it's 6 months to a year between occurrences. Never have quite figured it out..

are u sure a coil pack isnt going out?

I feel like this is somewhat likely with the age these cars are at now.

 

[ghunt81]

are u sure a coil pack isnt going out?

I replaced all the coils 2 years ago I think? I did get a misfire code for a specific cylinder after replacing the coils, replaced that one coil and never got that particular code then. But the P0300 will just pop up at random.

 

[DieHarder]

It can be the case that one of the pigtails for the coils has retreated too far up the boot leading to a misfire... however, without a specific cylinder you'd have to replace all of them. On the good side coils/plugs are cheap if you want to go that route.

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