At 05:05 PM 1/6/2016, Richard Golen wrote: >for a couple of minutes. Drove home and then disconnected the wires >to the O2 sensor. Took the van for a drive. Ran like a champ for >about 5 minutes, and the loss of power, rich running, etc. started >up again. This is the first time its run this way with the O2 sensor >disconnected. > > >When it "idles" its runs roughly at 300 rpm and puffs out black >smoke. I've blown through 1/2 a tank in 80 miles. Find and clear the short to ground of the sensor wire. It's probably where the shield ends on the bright green wire. The insulation tends to crack there because of the sudden change in stiffness, and it get shorted by loose strands from the shield. You should have about 0.45 volts on that lead with ignition on and sensor cold or disconnected, measured with digital multimeter. Yrs, d |
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Vanagon mail messages have been archived.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.