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WTF?....Troubleshooting Help wanted....

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Old Jun 12, 2002 | 11:45 PM
  #1  
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Default WTF?....Troubleshooting Help wanted....

Well tonight I got a flashing SES light. The light comes on when I am between 1k and 3k for a few seconds driving. When I slow to idle it goes off, but the car continues to idle rough.

We autotapped the car and are getting a constant misfire on the #8 cylinder. This misfire goes away completely when I take the car above 3k. If I rev it up a few times it will not misfire at idle for a few seconds and then start again.. Above 3k, the car feels as strong as normal.

We changed out plugs,wires, coil, injector, checked to see if it was firing, checked to see if coil was firing, and checked for loose wires.

The number 7 cylinder has a small misfire, but it only goes to like 40 before it resets whereas the #8 goes to like 200.

I was just driving at like 2k on the highway when it started, I did not bang the limiter. There is also no ticking sound that can be heard.

I changed the cam ove 5k miles ago and have a Tr224 112lsa with 941's. Could this be a spring? what about a pushrod? The thing is there is no noise and it goes away above 3k... What should I check? Thanks...
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Old Jun 14, 2002 | 12:04 AM
  #2  
Grave Danger's Avatar
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Default Re: WTF?....Troubleshooting Help wanted....

Hows the #8 plug look compared to the others?
My symptoms were the same as yours, my #2 plug was black the others were fine. Mine ended up being a broken exhaust spring.

Good luck!
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Old Jun 14, 2002 | 12:15 AM
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Default Re: WTF?....Troubleshooting Help wanted....

The plug was black as hell..

Did yours get better at a higher rpm?
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Old Jun 14, 2002 | 06:56 AM
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Default Re: WTF?....Troubleshooting Help wanted....

Broken #8 exhaust valve spring.... Damn 941's strike again.....
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