Interesting "check engine" event - Saab 9000 Bulletin Board - Saabnet.com
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Interesting "check engine" event
Posted by BobS (more from BobS) on Tue, 3 Sep 2002 23:03:10
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Started the 96 9000 last week and it ran on 3 cylinders. Needed to get home so drove off on 3. Within 1/2 block the check engine light came on and at the same time it began to run on all 4. Ran just fine the rest of the way home. The OBDII reader said misfire on cylinder 4 so put the DI out of the 97 in it. After a couple days there was a jerk and the check engine light went out. What was this thing doing? It seemed like it was running on base boost when the light was on, and the jerk may have been the transition to full boost, ok. So how did it make it's self run on all 4?
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