Re: Turbo issues (long) - Saab 900 Bulletin Board - Saabnet.com
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Re: Turbo issues (long)
Posted by JohnK (more from JohnK) on Mon, 2 Dec 2002 10:53:10
In Reply to: Turbo issues (long), Flip, Mon, 2 Dec 2002 02:31:31
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Wide idle swings when cold is often a bad Air Mass Meter (AMM). A bad AMM can also cause flat spots and surging under power.
If your turbo boost gauge stays at the break between white and yellow, it is likely that the hose to it is disconnected. Check by looking through the left speaker hole. This hose is linked into the pressure transducer and the overboost switch via tees. Disconnected hoses here can also contribute to funky idle and boost problems. All under the dash. On an 85, you can get to these components without removing the knee bolster, but it helps to remove the front seat to avoid contortions.
posted by 216.75.9...
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