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D'oh. Problem on boost/ low vac conditions

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Old 02-15-2009, 08:11 PM
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MM951
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Default D'oh. Problem on boost/ low vac conditions

I had a feeling creating a thread about my 951 that wasn't about a problem would bite me in the ***.

I was driving my car and noticed I was low on gas (approx 1/4 tank) so I pulled into the local getty and got $20 of 92 octane. About 5-10 minutes later I would start sputtering on boost or any throttle position resulting in less than 8" ish vac. The car still runs great off-boost.

I have a new FPR, FPD, fuel filter, injectors. The vac line to the FPR is still connected (and I also have 20" vac @ idle) I had a similar problem about 2 months ago after driving for <40 minutes. Oddly enough it went away and I have taken the car on many long drives without a hiccup...

I'm suspecting fuel pump (like I did before) - anyone have any thoughts? Anyone ever have an intermittent problem like this (or are they even related?) I don't think its a DME/chip/wiring issue (knock on wood) but am open to any thoughts.
Old 02-16-2009, 07:52 PM
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carreracoupe997
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Are you running the stock cyclic valve?
Old 02-16-2009, 11:18 PM
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Van
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Water in gas?
Old 02-23-2009, 04:15 PM
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MM951
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Turns out it was bad gas! Drained it and put fresh gas in and its good to go. Getty wouldn't would do anything about the bad gas though



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