More Code 2111

[Dan Cordon]

Thanks Alan!

The car had the distributor gear failure shortly after I got it, so 
there's a new distributor (and brass gear) in there now. I've loosened 
up the distributor and moved it around slightly to see if it had any 
effect. Light didn't go off from that. So a code 2111 can be from the 
timing window being off? If that's the case, I'll definitely look in to 
checking the slack in the timing belt and chain.

I had the MM hose blow out on me, and have been waiting for another one 
before I drive the car again. When I do, I'm going to put an O-scope on 
the RPM sensor and see how it looks at the ECU connection. Worth 
checking out as well :o)  Thanks for the tip. When I'm back on the road, 
I'll update everyone on the diagnostics.

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



alan cordeiro wrote:

> Dan,
>
> It appears your problem is growing worse over time, this
> may be an indication of the distributor Hall-effect sensor being
> right at the edge of the timing window where the ECU must
> also see the pulse from the flywheel sensor.
>
> Besides timing belt stretch, another source of SLOW creep
> of timing error is wear in the nylon gear where the distributor shaft 
> gets driven off the secondary cam.
>
> Come to think of it, there is probably a few degrees
> between the primary and secondary camshafts accumulating slowly as the 
> timing chain grows old.
>
> Alan