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Misfire issue

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Old Jun 16, 2007 | 08:12 PM
  #1  
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Default Misfire issue

Ill try to describe the problem the best i can,

when i start my car it runs fine, about 2 minutes later it runs really ruff misfiring really bad. The car will shortly after that run fine, then misfire again, then run fine, and after about 5 minutes it will just run fine until i turn the car off and start it again, then the process repeats itself. Now its taking longer and longer for the car to go back to running fine again. I just need some guidance on what to check first. My SES does blink when its running ruff. I checked all my plug wires and they seem to be fine(the spark plugs and wires are less than a year old). Could this be an oxygen sensor issue?

Any help would be appreciated
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Old Jun 16, 2007 | 08:43 PM
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From: Maryville,Tn
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check your spark plug gaps, wires, MAF sensonr, O2 sensors. Tou check the MAF and 02 sensors, go to autozone and have the codes scanned. they can usually tell you the problem.

I had a terrible misfire issue that was caused by a spark plug. I must have tapped it on something while changing plugs
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Old Jun 16, 2007 | 08:51 PM
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geta scanner on your car and find out what codes it's throwing. what your describing sounds like bad O2's or bad cats.
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Old Jun 17, 2007 | 11:58 PM
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had my car scanned at Autozone, some O2 code came up. I dont remember exactly what it was , but bought 2 O2 sensors put em in and its fixed!! Just posting an update just in case someone else has a problem like this and finds this post useful.
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Old Jun 18, 2007 | 02:26 PM
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From: Greybull, Wy
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My random misfire code was caused by 1 loose plug wire.
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