CEL, drop in fuel economy, but runs fine - Saab 9000 Bulletin Board - Saabnet.com
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CEL, drop in fuel economy, but runs fine
Posted by Noel (more from Noel) on Fri, 6 Oct 2006 17:10:03
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Filled the tank yesterday and put in a couple bottles of Techron in prep for a 375 mile, 7 hour drive today in the '96 CSE. Hadn't run any Techron in a while and I figure it needed it.
Had only gone a few miles this morning when I get a CEL. No noises or anything, car runs fine, idles smooth, temp OK. So I do the trip but instead of 28 to 30 mpg at 75 I'm getting 18 to 20-- calculated, not just on the trip computer.
Will go to AutoZone tomorrow to get some codes pulled, pull the plugs to see what they look like and drop by my indy on Monday. Will also see if something somehow got disconnected when my indy put a new battery in yesterday. Or maybe the Techron upset things.
In the meantime, any ideas?
Am pretty sure it's O2 sensor related, but who knows....
posted by 24.52.16...
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