misfire in cyl #1 cel 301
03-03-2004, 12:30 AM
#5
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wellm when i has an aem cold air it cause my car to misfire. i then changed them ot one step colder plugs and they went away. so my guess is it would be your intake thats causing it.
03-03-2004, 07:00 AM
#7
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Location: Glendale Hts, IL.
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Car Info: 02 WRX WGN
The easiest thing to do is pull the plug and look at it. If the plug is jet black and not a shade of chocolate brown, it's running too rich. The other thing that has plagued people have been coil failures. That's easy enough to check. Simply swap coils with #3 and see what happens.
But depending on the intake it could be a rich issue.
The other (more drastic) thing it could be is a lack of compression in cylinder 1. While not typical, it's possible. A compression test is easy, quick, and will identify that problem.
Jorge (RiftsWRX)
www.ProjectWRX.com
But depending on the intake it could be a rich issue.
The other (more drastic) thing it could be is a lack of compression in cylinder 1. While not typical, it's possible. A compression test is easy, quick, and will identify that problem.
Jorge (RiftsWRX)
www.ProjectWRX.com
03-03-2004, 07:11 AM
#8
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when i was stock i had the 301 error on #3. took out the plug n' sure enough it was black. so i got it cleaned then the error went away......
RANDi
RANDi
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