Took my car to autozone and it had these two codes and looked it up and it means Primary HO2S (No. 1) Heater System Electrical for first code and Primary HO2S (No. 1) Heater System for second. I'm usually pretty good about these but i have never seen them. Could someone put me in the right direction for what to look for? Thanks.

 

o2 sensor. check the circuit.

 

Hello,

2002 Accord SE/EX

New to the forums, and not much of a mechanic, just trying to avoid being taken for a "ride".

I also have the same two codes. I brought it to a local mechanic. He replaced the O2 sensor (front) and he said the light wouldn't go off. SO he put the old sensor back on, and recommended Honda look at it.

Went to Honda today. They hooked up their $15,000 diagnostic computer and got the same two codes. The guy told me that it's the secondary rear CAT-mounted sensor. He also recommended 2 new CAT shields.

Every forum that I have crawled and all the compiled codes from various Honda users say it's the primary O2 sensor (front) based on the code list.

Is Honda giving me the wrong codes?

Any advice?

I really appreicate anyone's time.
D

 

I have a 2001 Accord EX w/ 109k and just got the same codes a week ago. Have you had any success getting it fixed? Any suggestions?

Any help is greatly appreciated.

 

Replace your #1 (Primary) Oxygen Sensor (the one mounted BEFORE the Catalytic Converter).
It has a Heater Element which keeps the sensor at operating temps, and your's isn't working.

P

 

I have a 2001 Accord EX w/ 109k and just got the same codes a week ago. Have you had any success getting it fixed? Any suggestions?

Any help is greatly appreciated.