Re: Check engine light mystery - Saab 9-5 Bulletin Board - Saabnet.com
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Re: Check engine light mystery
Posted by David in Michigan [Email] (more from David in Michigan) on Sun, 12 Jul 2009 14:22:40
In Reply to: Re: Check engine light mystery, saabsince 93b [Profile/Gallery]
, Sun, 12 Jul 2009 13:36:12
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The CEL on our '00 9-5 V6 has been of and on (mostly on) since we got the car at 178k miles about 18 months ago. It now has ~196k and the light,as I mentioned, has been on most of the time. The codes also indicate a bad 02 sensor (whether it's front or back, I don't remember). Replacing it works for a little while (i.e., light goes off), but then reappears. Sometimes, it goes off for maybe 150 miles "all by itself,", but then is there again. All the while we've had it, the car has performed flawlessly with no change in fuel economy or acceleration regardless of the light's status. It seems to me that I read on this BB that the CEL problem can occur as a result of an old, brittle wiring harness somewhere along the line. I've grown to simply accept the CEL, on or off.
posted by 75.218.23...
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