?s re VAG-COM Readings

benswann at comcast.net benswann at comcast.net
Wed Sep 17 04:11:48 EDT 2003


Matt,

That was it - not too intuitive and I tried it earlier and gave channel
unavailable error.  Anyway got some readings that made much more sense and now
I just need to corr
> Not individual channel test, you need to go to
> Basic Measurements, block 000.
> Matt
> --- benswann at comcast.net wrote:
> > This is the first time I have run VAG-COM on my '91
> > 200 20V or any car for that
> > matter.   I selected individual Channel test under
> > engine control module after
> > Auto Scan displayed no faults found.
> >
> > Many of the channel readings I got with VAG-COM were
> > so far out of range
> > compared to Bentley Displayed Value range I'm
> > wondering if they are valid, or
> > is there some component that would throw al these
> > readings so far out.  I show
> > a range of the reading I collected.  Two numbers are
> > for a first and second
> > (repeat) test.
> >
> > Here is what the readings were:
> > Channel     Range     Spec.      Description/comment
> > 1           198       184-215    Seems OK for the
> > temp. reading
> > 2           87-88,104 20-25      can this be a valid
> > reading for engine load?
> > 3           37        77-83      RPM x 100?  I did
> > not abserve RPM dropping and
> > the number did not change
> >
> > 4           39        121-135    Idle Stabilizer
> > Operating range - way high
> > 5           253-254   80-125     ISV Curve zero
> > point
> > 6           3-4       123-127    ISV adaptation
> > 7           11-155    41-55      ISV curve control
> > 8           12        123-133    O2 sensor control
> > 9           193, 197  115-141    O2 sensor
> > adaptation
> > 10          93-94,108 8-12 BTDC  Momentary Ignition
> > angle -I know timeing can't
> > be that far advanced
> >
> > Any ideas as to why many of these readings seem so
> > far away from the (ideal)
> > displayed value range given in the Bentley?
> >
> > Also, noticed channel readings for numbers way
> > beyond 10 - values were mostly
> > numbers from channels 1-10.  Why is that?
> >
> > I'm just geting familiar with Motronic diagnostics.
> >
> > TIA
> >
> > Ben
> > _______________________________________________
> > 200q20v mailing list
> > 200q20v at audifans.com
> > http://www.audifans.com/mailman/listinfo/200q20v
>
>
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