A simple "Scan" shouldn't reset the computer at all..at least not with the
lower-end scanners available at most auto-parts stores.
A few items that you may want to look into:
(1) Dirty Air Filter - (Most obvious)
(2) Bad gas - (Possibly, but not that likely)
(3) Clogged/Bad Catalytic Convertor - (Have the dealer check this since it's
covered under a 5/50 mandatory warranty)
(4) Bad O2 - (Need scanner to watch the O2 voltages)
What I would suggest you try first is to reset the computer (15-second process)
and follow the OBD-II Driving Cycle just to make sure nothing is "out of
whack". http://www.dakota-truck.net/UPGRADES/driving_cycle.html
Is this a V6 or V8 and 2WD or 4WD?
- Bernd
> I recently did the trouble code scan, and since then my gas milege has
> dropped considerbly. I get 10 mpg whether im on the highway or in the
> city..even if i baby the gas pedal. I even have a dynomax exhasut system on
> and the milege didnt move up at all from 10mpg. What could be wrong? When
> i did the scan did it reset the computer and for some reason is it not
> calibrated right? Is there a special sequence of driving/revving
> engine/stop and go at certain RPMS for the computer to re-configure it all?
> It was never this bad (was around 15-16mpg) before i did the trouble code
> scan..and that was before the exhaust too.
>
> What do I do????
>
> Thanks in advance,
>
> -------------
> Dakota Dodge
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>
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This archive was generated by hypermail 2b29 : Fri Jun 20 2003 - 11:56:38 EDT