Volvo RWD 200 Forum

INDEX FOR 1/2026(CURRENT) INDEX FOR 3/2013 200 INDEX

[<<]  [>>]


 VIEW    REPLY TO THIS MESSAGE    PRINT   SAVE 

02 sensor, one wire or three wire? 200 1984

posted by  someone claiming to be 240snowmobile on  Tue Dec 7 07:53 CST 2004 [RELATED]

The O2 sensor is actually ignored until the engine itself warms up (>70C), so in most cases it probably shouldn't make much difference whether it's heated or not. There are a few situations where the heater might help to keep the O2 sensor nice and toasty and within the optimal operating range, like long mountain descents or idling when driving in very cold weather.

I'm not sure if the heater circuit is monitored by the ECU and would light up the MIL if it's open. If that is the case you could always just stuff a resistor in the heater's place to fake out the ECU.





THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD

New 02 sensor, one wire or three wire? [200][1984]
posted by  john sargent subscriber  on Sun Dec 5 09:52 CST 2004 >


<< < > >>



©Jarrod Stenberg 1997-2022. All material except where indicated.


All participants agree to these terms.

Brickboard.com is not affiliated with nor sponsored by AB Volvo, Volvo Car Corporation, Volvo Cars of North America, Inc. or Ford Motor Company. Brickboard.com is a Volvo owner/enthusiast site, similar to a club, and does not intend to pose as an official Volvo site. The official Volvo site can be found here.