O2 sensor heater circuit malfunction??
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Joined: Oct 2005
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O2 sensor heater circuit malfunction??
i have my check engine light on and it gave me a p0135 code and it says its an o2 sensor heater circuit malfunction. anybody know whats this means??? any help would be appreciated, thanks!!
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Joined: Jul 2004
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From: A forum with actual tech
Take a look at the PDF Helms manual available in the Civic forum sticky: http://tech.hybridgarage.com/tech/ma...e%20manual.pdf
It will have a nice flow chart in there to get you started. The problem either lies in the O2 sensor, O2 heater wiring, or the ECU.
It will have a nice flow chart in there to get you started. The problem either lies in the O2 sensor, O2 heater wiring, or the ECU.
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From: In a place called Hell
Did this code randomly appear or was this after a header install/exhaust modification?
You're most likely going to have to replace the primary o2 sensor, if you want to get rid of the CEL.
You're most likely going to have to replace the primary o2 sensor, if you want to get rid of the CEL.