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Too many Head Gaskets!!!!!!

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Old 08-01-2006, 11:24 AM
  #16  
Tom M'Guinn

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Originally Posted by toddk911

Because at crusing/idle the a/f is very lean.
It should hover around 14.7:1 if your O2 sensor is working -- unless your a/f ratio is too far off for the closed-loop system to get back to 14.7:1.
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Old 08-01-2006, 11:28 AM
  #17  
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Originally Posted by toddk911
"It turned out to be a little slit in the FPR vacuum hose which, for some reason, would only pop open occassionally."

Tom: can these be checked doing a pressure test or only visably checked?

I actually found it with a vacuum pump (MityVac) while testing the FPR on a hunch. It would hold vacuum or not depending on how I wiggled the hose.
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