[V6-12v] Check Engine Light

[Nathan Widmyer]

My fault, it's a 1994 90 quattro.  Does the car need to be on, and if
so, does the check engine light need to be on?  Is the procedure you
are referring to at http://www.12v.org/maintenance/dtc.php  ?

On Tue, 11 Jan 2005 11:07:36 -0800, Tom Christiansen
<tomchr at ee.washington.edu> wrote:
> Nathan,
> 
> Pull the ECU codes. You didn't mention which car you drive, but I assume
> it's a 93-95 V6 of sorts. You can short two terminals in the black and
> white plugs in the fuse box (under hood, driver's side) and the check
> engine light (MIL) will blink the ECU codes at you. Check Sjm Automatic or
> v12.org for details.
> 
> Once you have the codes you'll be able to diagnose the problem a bit better
> (or write to the list and we'll help you out.)
> 
> Tom
> 
> At 10:54 AM 1/11/2005, Nathan Widmyer wrote:
> >For a couple weeks I've been getting the check engine light
> >intermittently with no real common thread of occurance.  I can go to
> >or from school and home (about 100 miles) with no light and the next
> >day go to the 7-11 (3 miles) and get the light, or vice versa.  The
> >light also turns off before the car is turned off too sometimes, not
> >always.  For example, I can start the car and 5 minutes later, the
> >light comes on and 10 minutes later it turns off.  The engine doesn't
> >seem to change performance characteristics if the light is on.
> >
> >I checked the trouble codes from the climate control and I get "00o"
> >meaning no trouble has been found.  What can I do, being at school
> >with no tools, at least find out what can be the problem?
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> 
>