1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Bad Idle (gonna fix this once and for all)

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Old Apr 14, 2007 | 03:06 PM
  #11  
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Just tested my vacuum pressure, and it was a steady 14 psi at idle.
BTW, this was tested right after a 15 minute drive, and the engine was still hot. It was in park, too.
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Old Apr 14, 2007 | 07:35 PM
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Bump! No one knows if that'* ok????
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Old Apr 14, 2007 | 09:21 PM
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I still think we should buy a good Fuel pressure gauge with a long hose and drive around to get a proper reading. I kinda don't trust the cheapy Harbor freight gauge I bought.
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Old Apr 14, 2007 | 09:27 PM
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yeah...
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Old Apr 15, 2007 | 03:57 AM
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Any way of scanning to check numbers on the TB electronics. Perhaps you have a funny IAC or MAF.
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Old Apr 15, 2007 | 05:36 AM
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Originally Posted by petraman
Just tested my vacuum pressure, and it was a steady 14 psi at idle.
BTW, this was tested right after a 15 minute drive, and the engine was still hot. It was in park, too.
Something like 19" would be normal for N/A,,, Do you mean 14 inches of vacuum or negative 14 psi?
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