transient flashing CEL with no fault codes - Saab 9-5 Bulletin Board - Saabnet.com
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transient flashing CEL with no fault codes
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Posted by Dean (more from Dean) on Mon, 21 Feb 2011 08:16:37 Share Post by Email
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2003 Aero wagon autobox, 70,000 miles, vehicle was in a closed garage with temperature in the 50's. It was 73F on the street.

Engine start was normal. Clean roads, was pushing the engine a bit. Boost looked normal and indicated boost seemed to come on without delay, but power & torque was not as good as it should have been. Torque was steady, no surging and no obvious missing or anything else of note. I would say that this is a new development, and not a condition that has been developing slowly. However, vehicle has not been driven very often.

After accelerating to 55 mph, the CEL was flashing, so drove with a light throttle after that and again, things felt ok. Then the CEL stops flashing after perhaps a minute. At home soon after that and scanned for codes and there were none. [traction control light was not doing anything.] No messages on the SID.

Plugs are 7ES and quite new. Battery voltage was good when starting and underway. Gas tank was nearly full. Low miles on 10/40 synthetic oil.

Other than routine maintenance and new IDM last July, the vehicle has not has not need much work, so very little has been disturbed.

Any ideas?

posted by 68.91.152...

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