Rough idle/running and "check engine" light on--what does it mean - Saab 9000 Bulletin Board - Saabnet.com
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Rough idle/running and "check engine" light on--what does it mean
Posted by mzkoshka [Email] (more from mzkoshka) on Fri, 17 Aug 2001 15:39:50
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Today on a short road trip with a fresh tank of gas (hmmm) my 1994 9K CS started to run rough at idle and at moderate speeds, but not at high speeds. On arrival (135 mile drive), the check engine light came on.
The same light came on last year without any of these symptoms and was treated with some fuel injector cleaner in a silver bottle.
The rough idle _seems_ to have developed very recently, though I am not very observant.
Does anyone have any experience with this type of problem?
I'm thinking the leading suspects are worn out oxygen sensor, dirty fuel injectors, or a bad tank of gas.
posted by 205.188.19...
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