'88 SPG cold running hesitation & full boost lost umph! - Saab 900 Bulletin Board - Saabnet.com
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'88 SPG cold running hesitation & full boost lost umph!
Posted by Kyle [Email] (more from Kyle) on Tue, 4 Dec 2001 09:11:00
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The car starts fine when cold but after about 30 seconds it will start to hunt for idle. Pulling away it just won't run right. There is no power, it hesiatates, stumbles while driving until it is warmed up and will stall when I put the clutch in at the first stop sign but not at the second stop sign a real short distance from the first.
When warmed up and under full boost the boost will come up but it runs out of umph -- seems to loose power and starts bucking/surging. The bucking will also happen when driving normally and you get off then on the gas. The car starts doing a funky jerking/lerching like the ignition/fuel is turned off/on quickly.
I have searched for air leaks, the AMM does it's "burn off", replaced the computer temp sensor under the intake (and tested it with a multi meter), cleaned and tested the idle control valve, checked the plugs/gap (NGK BCP6EV normal heat range). Any thoughts? Thanks.
posted by 152.163.20...
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