checking an O2 sensor

Jan 17, 2006 Last reply: 20 years ago 3 Replies

Does anyone have a good way of testing an O2 sensor to see if it is good (SteveT ?????)? I know this is a Nissan group (want this info because our 96 Chevy truck is throwing codes), but figured the advice would be relevant to any auto group. By the way I replace the heater core on my



84 300ZX over the Christmas holiday and am very happy that I haven't had any leaks out of it. I sure as hell don't want to have to do that job again.

Sure but on OBDII cars, they can throw an O2 sensor code even if they pass an analog test. If it's giving an O2 sensor code, replace that sensor.

Fun job isn't it! :-)

Thanks, though it would be worth a try

It wasn't tough, just took a lot of time. The worst part of it was taking the metal brace off under the dash that goes from one side of the car to the other. There are two bolts that you have to drop the steering column to get to and then stick a socket into blind holes to take them out. Would have been a hell of a lot easier if the bolts would have been accesed from on top.

And the difference is??? People wonder why it costs so much to do this job, now you know why.

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