oxygen sensor codes
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New User
Joined: Apr 2003
Posts: 2
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From: Lawton US
oxygen sensor codes
codes say that the O2 heaters are not working. Changed all sensors and "check engine" light continues to light up. Could this be a computer problem or something else other than the sensors?
Hotshot
Joined: Aug 2002
Posts: 12,679
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From: BC, Canada
oxygen sensor codes
Hi rstonerock and welcome to FTE 
Did you happen to write downs the code numbers?
The 02 heaters get power from the fuse box and ground through the PCM. If you can post the codes I can look in the pinpoint tests for them and see what it says.
Did you happen to write downs the code numbers?
The 02 heaters get power from the fuse box and ground through the PCM. If you can post the codes I can look in the pinpoint tests for them and see what it says.
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New User
Joined: Apr 2003
Posts: 2
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From: Lawton US
oxygen sensor codes
Don't remember the #'s.
Specifically, they coded that the #2 bank was running lean and the heater was not working. After replacing all of them, i'm assuming that there is either a short in the system, or the computer is not signaling the sensors. The fuse checks OK.
Specifically, they coded that the #2 bank was running lean and the heater was not working. After replacing all of them, i'm assuming that there is either a short in the system, or the computer is not signaling the sensors. The fuse checks OK.
Senior User
Joined: Apr 2002
Posts: 106
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oxygen sensor codes
I was about to replace my sensors when a mechanic suggested that I change my fuel filter. I changed it and no more codes. THe filter was clogged and it caused the sensors to report that they were bad.
Just an idea.
Just an idea.
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