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CAI Causing Check Engine Light *Update*

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Old 09-27-2006, 11:00 PM
  #21  
06GT4RAD
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Default RE: CAI Causing Check Engine Light


ORIGINAL: stargazer468

Is driving with the CEL (lean conditions) for short periods of time really bad?
Yes it can in fact be catastrophic.

Richard
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Old 09-27-2006, 11:26 PM
  #22  
stargazer468
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Default RE: CAI Causing Check Engine Light

thats what i figured, good news is i got my SCT2 to work and now the V6 makes me much happier can you say spin first chirp 2nd and 3rd? not bad for a 6er
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Old 09-28-2006, 12:11 AM
  #23  
undecided.steve
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Default RE: CAI Causing Check Engine Light

Good show!
I'm curious, what specifically was wrong and how did you fix it?
Tia!

Steve
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Old 09-28-2006, 10:08 AM
  #24  
Daniel60
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Default RE: CAI Causing Check Engine Light

ORIGINAL: Sonic Boom NH

A lean condition at any time, even for a short time, is bad for the motor. A lean condition means much higher temperatures in the combustion chamber then normal and that is not good for the values, cylinders, rings etc…

Higher then normal combustion temperatures can also cause pre-ignition (knock) that is VERY bad for the rods and crank. If the knock is not bad enough then generally the computer can correct for that by taking timing out which takes horsepower away. However the computer can only correct or compensate so much for a problem…
Does a lean tune cause pinging? or how would you know? If you never have a check engine light I assume everything is 10-4/
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