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2004 honda accord: 4 cyl with the engine light on..analyzer..O2 sensor

Customer Question
I have a 2004 honda...
I have a 2004 honda accord 4 cyl with the engine light on. I put my engine analyzer on and it says O2 sensor Bank II Sensor II. Do I just need to replace the sensor or is there something else I need to check that could make the sensor look bad? If I need to replace it how do I determine which one is right? There are 1,2,3&4 wire sensors. Some that need splicing and some with connectors.
Submitted: 9 years ago.Category: Honda
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Answered in 1 hour by:
6/27/2008
Mechanic for Honda: ike, Honda Certified Gold level Techni replied 9 years ago
ike
ike, Honda Certified Gold level Techni
Category: Honda
Satisfied Customers: 208
Experience: 9 years experience with Honda/ Acura. 6 years at dealer
Verified

If it's a P0135, or a P0141, just replace the sensor. These are both heater circuit malfunctions. We do a lot of them. Do't buy aftermarket. Honda computers do not like splices or badly manufactured parts.

On a 4 cyl. the O2 sensors sre both at the catalytic converter. The HO2S S1 is closer to the engine, the HO2S S2 is after the S1.

What code exactly do you have?

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Customer reply replied 9 years ago
Reply to ike's Post: The analyzer read: P0141, 02 sensor heater, circuit malfunction, Bank 1 Sensor 2.

I was hoping to avoid the high priced Honda replacement cost and get an a quaility aftermarket, like Bosch. But you think that's a bad idea?
Mechanic for Honda: ike, Honda Certified Gold level Techni replied 9 years ago

I do. Only because I have had to replace the aftermarket ones before, and they don't last very long for some reason. Every time I have replaced one, my custmer tells me they just replaced it 6 months ago. Generally speaking, Honda cars don't like much of anything afftermarket.

I also checked on warranty extensions, but there are none for this problem.

ike
ike, Honda Certified Gold level Techni
Category: Honda
Satisfied Customers: 208
Experience: 9 years experience with Honda/ Acura. 6 years at dealer
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