Idling Issue - Saab 900 Bulletin Board - Saabnet.com
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My '91 900S is not idling right. The Check Engine light came on the other day and the engine does not idle right. I changed the Air Mass unit, no change. I checked the fuel pressure regulator, but it does not leak any gas. Accelerating in Neutral is fine and the car drives well, however when hitting the gas the engine rev's up fine, but when it comes down it hit's almost 400 rpm's or lower just about to stall and then goes up back to regular idling. I smell gas coming out of the exhaust, the mixture is to rich, what can it be. My o2 sensor was changed about a year ago, the mixture was to rich as well back then but I had not the problem with the unstable idling. Any ideas? Thanks!
posted by 208.120.175...
Posts in this Thread:
- Idling Issue, bert
, Tue, 4 Nov 2008 13:33:11 <-- Viewing This Message
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