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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.

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Old 10-17-2002, 12:23 AM   #1
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Default Whats this??

I'm terrible on my car terms, whats this actually mean...
Vacuum Ported Fuel Pressure Regulator
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Old 10-17-2002, 12:41 AM   #2
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That'* a good one. 2 possiblilites I'll guess at before JR jumps in here. #1, the pressure can vary depending on manifold pressure, or #2, the regulator is disabled and unable to deliver fuel if there isn't any vacuum present.....??
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Old 10-17-2002, 12:46 AM   #3
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Sounds simple enough. The psi increased over the years in Bonnies I take it?
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Old 10-17-2002, 12:55 AM   #4
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Yes, it did. With stricter emissions and the need for better performance, the injectors were changed to allow a higher fuel delivery pressure for fuel atomization.
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Old 10-17-2002, 12:59 AM   #5
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Interesting....
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