Re: Got Boost? I don't...help! - Saab Performance Bulletin Board - Saabnet.com
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Re: Got Boost? I don't...help!
Posted by Dean (more from Dean) on Mon, 3 May 2004 19:29:00
In Reply to: Got Boost? I don't...help!, Chris R., Mon, 3 May 2004 19:10:16
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93 9K has MAF or speed density?
The PBV may be shot, or the vac line to it may have split or come off. If a turbo hose was blown off somewhere, you would not get yellow boost. A BPV leak will not mess up the AF mixture as it is an internal leak. A MAF reading still is right (if MAF equiped).
Check all of the larger hoses and the IC. Hose from TB to IAC?
With a cold engine, grab the WG lever and move it. It takes quite a lot of force. See if anything feels siezed or bogus. If the WG head came off, you should be able to eval easy with the down pipe disconnected. Easy on a NG900, don't know about yours.
A loose hose clamp can create partial boost. A leaking problem like that should cause rich running and stubbling with black plugs on a MAF system. A T5 system would not have AF problems.
You did determine that the BPC is not the reason for no boost. Good move with the hoses.
posted by 68.95.72...
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