More Code 2111
cord4530 at uidaho.edu
Thu May 12 05:17:23 EDT 2005
Just to update everyone on the progress:
History - have been getting intermittent check engine light (2111 code)
that's gotten progressively more frequent over the last several months.
-I checked for missing teeth on the flywheel, and they all seem to be
-I checked for the timing pin, and it's still there and straight.
-I checked for electrical interference from the high-tension coil lead,
and it's not in the vicinity of the wiring.
The 20v training manual mentions that the ref sensor has a substitute
function, and will continue to run if the sensor goes bad. Does the
engine speed sensor have any substitute function? I pulled the
connectors at the firewall while the vehicle was running, and if either
connector was unplugged, the engine died immediately. Is this normal
I should check the two sensor signals with an o-scope where they meet
the ECU. Perhaps this will tell me more. Though, I'm sure open to other
suggestions as well.
Side note: Car doesn't seem down on power (and still makes full boost)
when the check engine light comes on. Also, just after a full throttle
stint, the check engine light usually goes off for a while (10-50 seconds).
Thanks for any recommendations/ideas!
Mechanical Engineer - Engine Research Facility
University of Idaho
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