The simple answer is always "Don't do this." But we are fearless Vanagon pilots and mechanics, so off we go! There is no difference in the OUTPUT to the ECU between 3-wire and 1-wire Ox sensors. The 3-wire has a heating element built into it to allow the sensor to be "in range" sooner, and allow lower emissions. The ECU will ignore the input from the sensor while it is "out of range", especially at startup. So, the answer is that either sensor can be used on either engine, but there will be a price on the 2.1. It wants to see an "in range" reading much sooner, and may not like not getting that input. <snip> Can a 3 wire 02 sensor be used on a 1.9 engine by running a 12 volts to one of the white wires and grounding the other? Perhaps the answer(s) to both will enhance understanding. Mike
John Rodgers wrote: > Can the one wire version be used on a 2.1L engine? > If not, why not?? > If so, what is lost without the other two wires. > > My newly installed 3-wire O2 sensor apparently has an internal fault. > > I have a brand-new-in-the-box 1-wire O2 sensor. > > Thanks, > > John Rodgers > 88 GL Driver >
Evan Mac Donald 1984 Wolfburg 1985 GL 7 Pass. 1991 Carat Weekender 1972 Chevy P/U 1993 Bonneville |
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Vanagon mail messages have been archived.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.