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General Engine Management / Tuning Forum Discuss general EMS tuning concepts that do not pertain to a specfic brand or product.

Going Crazy Need ideas!

Old Jun 2, 2010 | 01:07 PM
  #1  
zoek24's Avatar
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From: SLC
Going Crazy Need ideas!

Here is my problem:

a/f jumping all over the place tuning does nothing to change that.
Also it starts misfiring like crazy after it warms to running temp.

Anybody know what the cause could be?
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Old Jun 2, 2010 | 01:21 PM
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From: cali
Umm since we know nothing about your car, No. We got no ideas.
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Old Jun 2, 2010 | 01:25 PM
  #3  
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From: Springfield MO
hmmm low compression in a cylinder, bad or wrong fuel, dirty injectors.......
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Old Jun 2, 2010 | 01:30 PM
  #4  
zoek24's Avatar
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From: SLC
Did a compression test and everything is fine there. And it runs E85
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Old Jun 24, 2010 | 05:23 PM
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From: Buffalo, NY
SOunds like a rich tune that may have finally fouled the plugs. Change plugs, or check if they are black looking. Then examine your ECU tune.
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