65 Secondary oxygen sensor heater?

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Jun 11, 2003 | 01:01 PM

CereaLand

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65 Secondary oxygen sensor heater?

I pulled a CEL off of my car today. I got a code 65, which is a secondary oxygen sensor heater? How do I fix this? Change the secondary o2 sensor?

Jun 30, 2004 | 11:18 AM

hondasport2000

Honda-Tech Member

Joined: Aug 2003

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From: Canada

Re: 65 Secondary oxygen sensor heater? (CereaLand)

I have the same problem.

I lengthened by secondary sensor wires in order to reach the secondary hole in the header. I am not running a cat either.

Jun 30, 2004 | 11:38 AM

deSigi

Joined: Feb 2004

Posts: 392

Likes: 1

The problem most likely lies in the O2 sensor connection. Either it isn't connected properly, it might be loose or not connected at all.

If you'd have a bad O2 sensor, you'd be getting a code 63.

Jun 30, 2004 | 12:01 PM

EE_Chris

Honda-Tech Member

Joined: Oct 2001

Posts: 4,611

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From: Severn, MD

Re: 65 Secondary oxygen sensor heater? (CereaLand)

I ended up replacing the O2 sensor.

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