P0135 Primary Heated Oxygen Sensor (Primary HO2S) (Sensor 1) Heater Circuit Malfunction

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Sep 19, 2008 | 09:37 AM

EG8AI

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From: San Francisco, CA, US

P0135 Primary Heated Oxygen Sensor (Primary HO2S) (Sensor 1) Heater Circuit Malfunction

A CEL popped up this morning. I had no idea why, but when I got it checked out, it read 135? And according to the CEL thread, it would be "P0135 Primary Heated Oxygen Sensor (Primary HO2S) (Sensor 1) Heater Circuit Malfunction." So my question is... now what? ha!

Anybody have any input?

Thanks!

The car is a 1996 4DR Civic LX.

Modified by EG8AI at 11:11 AM 9/19/2008

Sep 19, 2008 | 10:08 AM

thesmogman

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Joined: Dec 2005

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From: San Ramon/Pleasanton, CA, USA

Re: P0135 Primary Heated Oxygen Sensor (Primary HO2S) (Sensor 1) Heater Circuit Malfunction (EG8AI)

Your O2 sensors heater went bad. They put these heaters on them so they heat up faster and start responding sooner than without one.

It is time to replace it.