Ok, the idle is lousy and you have no codes. Next step - Saab 9000 Bulletin Board - Saabnet.com
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Ok, the idle is lousy and you have no codes. Next step
Posted by Ken Fisher [Email] (more from Ken Fisher) on Tue, 20 Jul 2010 19:25:37
In Reply to: no error codes flashed back..., Rob [Profile/Gallery]
, Tue, 20 Jul 2010 19:02:34
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It's within your ability to solve this. The comment 'very rich' implies black smoke out the back tailpipe. That means not enough air through the AIC valve, or the air temperature measurement reports colder than actual. Search on this site for info on possibly cleaning the airway through the AIC valve.
Your AIC valve is a candidate for suspicion if indeed all the hoses and fittings were airtight on the throttle body. If you have a temp sensor that sometimes is returning bad data, that could cause the Trionic sw to adjust the mixture out of a desired window, and then throw a temporary code that later gets cleared by normal operation.
posted by 76.212.20...
Posts in this Thread:
- 9000cd 2.3 ('92) runs v rough & surges/stalls at idle, Rob , Mon, 19 Jul 2010 17:25:25
- Thanks. Also O2 perhaps? Dodgey Trionic?, Rob , Tue, 20 Jul 2010 18:32:25
- check throttle body, vacuum hoses, Ken Fisher, Tue, 20 Jul 2010 16:34:33
- Re: 9000cd 2.3 ('92) runs v rough & surges/stalls at idle, Senor Don, Tue, 20 Jul 2010 11:47:06
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