Date: Fri, 29 Jan 1999 00:13:07 -0500 From: Vern Davison <dtarnopsam.net> Subject: Re: 1989 9000S problem - really stumped!
Tom, I hate to ask this, because it brings back some embarassing memories, but, have you checked the air filter? a clogged one would make it run rich no? Seems like fundamentals always get me in these situations. -V Tom wrote: > > 1989 9000S 140000 miles > Stalls under no throttle, such as when coasting up to a stop sign, > etc. Under constant throttle, runs fine. On the highway when you > allow it to coast and then accelerate, there is a short jerk, then the > car accelerates OK. > Running very rich, injection time is 12ms instead of around 3 ms. > My SAAB guru and I are both stumped since he has run all the > diagnostics he can and they all say the car is running fine. Switched > controller units, same problem. Can't believe that 2 units would > produce the same fault. All mechanicals, such as timing, plugs, > compression, are OK. Could find no shorts, etc. in the wiring > harnesses. All suggestions welcomed because we are stumped. > TIA, Tom
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