O2 Sensor Reading High

Discussion on Data Loggers, how to read your logs, what to improve, etc.

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71 Nova
Posts: 257
Joined: Thu Dec 14, 2006 10:07 pm
Location: Santa Maria, CA

O2 Sensor Reading High

#1 Post by 71 Nova » Sun Dec 17, 2006 12:17 pm

My O2 sensor for my UEGO 2000 digital AFR monitor started reading off scale high (17+) just recently. Is there any way to clean the sensor? Or is it new sensor time? THX.

RPM
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O2 Senspr

#2 Post by RPM » Mon Dec 18, 2006 9:23 am

I know of no way to clean an O2 Sensor. Reading lean is typical of a bad sensor. It could be a problem in the controller, but more likely its the sensor.

DOTracer
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Location: Westminster, MD

#3 Post by DOTracer » Mon Dec 18, 2006 8:07 pm

I spoke with a guy at the track that says he does tuning and claims he's cleaned the sensors with a small propane/MAP gas torch.

Take it for what it's worth.

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71 Nova
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Joined: Thu Dec 14, 2006 10:07 pm
Location: Santa Maria, CA

#4 Post by 71 Nova » Mon Dec 18, 2006 10:01 pm

Thanks guys, I guess I could try that, I don't have much to lose. I should have mentioned that it goes off scale high intermittently. I have also read on other forums that O2 sensor safe throttle body cleaner works sometimes...

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Racer704
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Location: Raleigh NC

#5 Post by Racer704 » Sun Dec 31, 2006 8:02 pm

If it was an injected motor there is a product called Terra Clean that cleans O2 and Cats.
Johnny B.

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