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TDI Power Enhancements Discussions about increasing the power of your TDI engine. i.e. chips, injectors, powerboxes, clutches, etc. Handling, suspensions, wheels, type discussion should be put into the "Upgrades (non TDI Engine related)" forum. Non TDI vehicle related postings will be moved or removed. Please note the Performance Disclaimer.

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Old July 25th, 2008, 14:54   #1
Rover96
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Join Date: Jan 2008
Location: Daytona Beach, FL / Wayne, NJ
Default Strange boost activity.

After changing my filters I noticed that my boost gets to around 4-5 psi when I'm in 3rd or higher around 2100 rpm without my foot on the pedal. Shouldn't it be at vacuum if I my foot is off the gas?
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Old July 25th, 2008, 19:37   #2
tom167
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diesels dont create vacuum there's no butterfly valve on the inlet manifold
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Old July 27th, 2008, 06:27   #3
Curious Chris
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At O% throttle, ie foot off the go pedal, one would expect the boost to drop to close to 0 psig. 4-5 psig seems a bit high assuming your car is stock and might point to turbocharger vanes sticking a bit.
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