Testing O2 sensor
02-04-2007, 03:36 PM
#1
1st Gear Member
Thread Starter
Join Date: Dec 2006
Location: Groves, TX
Posts: 77
Testing O2 sensor
Isn't there a way to test an O2 sensor to see if it is any good or not?
For some reason, I remember that you should be able to test the resistance across the leads but I want to be sure. I have them out right now while I am changing out my clutch and would like to test them to make sure they are fine before replacing them. The reason that I am concerned is because the car has been running really rich since the previous owner put off-road pipes on without the MIL eliminators, thus forcing it into limp mode. When I connected my diagnostics software to the ECU, it reported the right bank running too rich, and the O2 sensor lead is very black. The left bank sensors are light-grey like they should be.
Thanks!
For some reason, I remember that you should be able to test the resistance across the leads but I want to be sure. I have them out right now while I am changing out my clutch and would like to test them to make sure they are fine before replacing them. The reason that I am concerned is because the car has been running really rich since the previous owner put off-road pipes on without the MIL eliminators, thus forcing it into limp mode. When I connected my diagnostics software to the ECU, it reported the right bank running too rich, and the O2 sensor lead is very black. The left bank sensors are light-grey like they should be.
Thanks!
02-04-2007, 03:57 PM
#2
1st Gear Member
Thread Starter
Join Date: Dec 2006
Location: Groves, TX
Posts: 77
RE: Testing O2 sensor
OK...found some info on the Internet, and posting here in case it would be useful to anyone else:
http://www.mr2.com/TEXT/O2_Sensor.html
http://www.forparts.com/o-21.htm
http://www.mr2.com/TEXT/O2_Sensor.html
http://www.forparts.com/o-21.htm
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