Volvo RWD 200 Forum

INDEX FOR 10/2025(CURRENT) INDEX FOR 10/2012 200 INDEX

[<<]  [>>]


THREADED THREADED EXPANDED FLAT PRINT ALL
MESSAGES IN THIS THREAD




  REPLY TO THIS MESSAGE    PRINT   SAVE 

testing o2 sensor 200 1993

posted by  someone claiming to be laine on  Fri Mar 12 08:51 CST 2004 [RELATED]

i just attempted to test my o2 sensor by following the instructions in my bentley book and got stuck. the book describes a sensor signal connector (1 wire) and a sensor heater connector (2 wires). i have 3 wires, 2 white and 1 black, but no 2 wire connector. the black wire had a red plastic thing, and when i stuck the lead from the voltmeter in it, i got readings ranging from 0 to 4 mV (i think thats 0 to .4 volts, i'm not too adept with the voltmeter). so my question is, does that tell me anything about the state of my o2 sensor, and is there anything else i can do to test it? thanks!








  •   REPLY TO THIS MESSAGE    PRINT   SAVE 

    testing o2 sensor 200 1993

    posted by  someone claiming to be bosozoku on  Fri Mar 12 09:14 CST 2004 [RELATED]

    The 2 white wires are heater wires. The one black is a signal
    wire. 4mV = 0.004V, which means that either your car is running
    very lean, or the O2 sensor has no output. Try the test again
    between ground and the signal wire with the O2 sensor connected
    to the computer. The output should fluctuate below and above
    0.6V (600mV) or so.
    .
    -b.







<< < > >>



©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.