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Pressure reading on the VAFC at WOT

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Old May 14, 2008 | 08:45 PM
  #1  
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Default Pressure reading on the VAFC at WOT

So here is the problem....

At WOT my pressure meter shows at its lowest, -80 to -60 in recent times the number has been averaging around -75. My original avg was -45.

What I want to know is...are the numbers im seeing normal or should they be reading at +/- 0.00 which i have gotten on a few occasions in the past, but very rarely.

Im thinking I might have a small vacuum leak but I checked all my fittings and I didnt notice anything broken or loose.

Does anyone have any advice concerning this issue?

Thanks for your help
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Old May 15, 2008 | 09:51 AM
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Default Re: Pressure reading on the VAFC at WOT (Initial_drift)

what is the unit of measurement?
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Old May 15, 2008 | 10:19 PM
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Default Re: Pressure reading on the VAFC at WOT (98vtec)

760MMhg
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Old May 18, 2008 | 01:30 PM
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Default Re: Pressure reading on the VAFC at WOT (Initial_drift)

???
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Old May 18, 2008 | 01:57 PM
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Default Re: Pressure reading on the VAFC at WOT (Initial_drift)

a vacuum leak won't affect manifold vacuum at WOT.

I would say it's more likely to be a questionable map sensor. Mine reads 16-30 mmHg at WOT
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Old May 18, 2008 | 07:31 PM
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Default Re: Pressure reading on the VAFC at WOT (vlang29)

Oh ok, ill take a look at the MAP sensor and see if its bad. Thanks.
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