Re: Really rough idle after I tried to..... :-( 92 900 - Saab 900 Bulletin Board - Saabnet.com
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Re: Really rough idle after I tried to..... :-( 92 900
Posted by Simon S (more from Simon S) on Sat, 6 Mar 2010 11:47:14
In Reply to: Re: Really rough idle after I tried to..... :-( 92 900, Z, Sat, 6 Mar 2010 10:09:26
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I can't see the image, but it sounds like you're talking about the PCV valve and the connection to the valve cover? In which case the hissing would be the PCV valve itself? Check the seal on that grommet, and check the fitting for cracks. Any extra air entering the system there is a definite idle problem.
Bogging under load suggests other problems.
The brass fitting into the throttle body that the AIC connects to... is that by any chance loose? I suspect a leak downstream of the throttle body at any rate, causing both extra air when the throttle is closed, and air loss resulting in extra rich condition during boost.
posted by 24.21.131...
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