02-03-2007, 04:15 AM
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#9 |
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SP58GT
Join Date: Jul 2005
Location: USA
Posts: 633
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Your car won't build boost when there is no load, the turbo will still spin. This probably why you don't hear the noise with the downpipe disconnected. Its possible that your car is boosting and the gauge or sender is bad.
Inspect all your vacuum lines and Intercooler piping and let us know what you find. I might be able to take a look at it sometime next weekend.
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Nate  
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