When you say your engine will not idle below 2000 rpm; is that at start-up or when the engine is fully warmed up? I would be reluctant to cite the head temp sensor as fault of poor idle at any time. The more likley culprit would be a faulty air regulator or some type of vacuum leak or even poor idle adjustment. Does any one know the temperature at which the sensor "activates" the CPU to enrich the mixture? FWIW I had a head temp gauge attached to the same point at the head temp sensor and the readings were in the 250 to 300 range. Moving the head temp gauge to the no. 3 plug increased the reading 50 degrees F (normal 350 F); so there appears to be a fairly broad range of temps even on the head itself. This would lead me to conclude that it would take a fairly extreme temperature to induce the head temp sensor to cause the aformentioned problem, perhaps even in the range of 400 plus. DC ---------------------------------------------------------------------- David Carment School of International Affairs Carleton University Ottawa, Ontario K1S 5B6 voice - (613) 788-2600-6662 fax - (613) 788-2889 Email address: dcarment@ccs.carleton.ca ----------------------------------------------------------------------
|
Please note - During the past 17 years of operation, several gigabytes of
Vanagon mail messages have been archived. Searching the entire collection
will take up to five minutes to complete. Please be patient!
Return to the archives @ gerry.vanagon.com
The vanagon mailing list archives are copyright (c) 1994-2011, and may not be reproduced without the express written permission of the list administrators. Posting messages to this mailing list grants a license to the mailing list administrators to reproduce the message in a compilation, either printed or electronic. All compilations will be not-for-profit, with any excess proceeds going to the Vanagon mailing list.
Any profits from list compilations go exclusively towards the management and operation of the Vanagon mailing list and vanagon mailing list web site.