More Code 2111

[Dan Cordon]

Bernie wrote:

> Hi Alan,
> 
> IMO timing belts don't stretch, at least not to the degree that you imply.
> But on the 20V dual cam engines they must be adjusted initially tight enough
> to move the operating point well up into the very steep linear part of their
> force deflection curve to avoid the dreaded distributor rattle.  The
> resulting torsional cam vibration resulting from a loose belt is the
> principle cause of distributor drive gear and chain wear in 20Vs.  I have
> not witnessed either @ 200K.
> 
> Independent of all this, at any point in time the distributor timing mark
> must be congruent with the TDC timing mark.
> 
> Bernie

If a 2111 code can come from the signals being out of sync, I'd agree 
with this fully. When my check engine light is on, under certain loads 
(usually acceleration) it will turn off. However, when I had a slight 
distributor misalignment previously I was getting a code 2113.

Now that the car is running again (Thanks to Chuck for his old, but 
good, MM hose!) I'll get the O-scope on the RPM signal to see how bad it 
really is.

-- 
Dan Cordon
Mechanical Engineer
University of Idaho - Engine Research Facility