CEL P0167? Bank 2 Sensor 3?

[93blkongreenpro]

The GMT900s only have 4 02 sensors, 2 on each side, one before and one after each catalytic converter. Your aftermarket head unit used a non-standard code but at least it alerted you to a problem.

Did they do a learn reset with the scan tool after changing out the O2 Sensor?

I had the battery unplugged since i also had to replace the front impact sensor.

You got that code after you replaced that sensor or before? It looks like the new one isn't seated all the way.

You see the picture if the o2 sensor I removed from that spot? Lol.

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[Rocket Man]

I see that sensor, so I guess that answers the question. Did you clear the code after?

 

[93blkongreenpro]

I see that sensor, so I guess that answers the question. Did you clear the code after?

Everything was clear when I reconnected the battery. No CEL'S were displayed, so I didnt hook up the scanner to check stored codes.

So, i guess No is the answer to your question.

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[swathdiver]

I had the battery unplugged since i also had to replace the front impact sensor.

That doesn't initiate a relearn. A scan tool is what's needed so that the new sensor doesn't fail.

 

[93blkongreenpro]

That doesn't initiate a relearn. A scan tool is what's needed so that the new sensor doesn't fail.

Radio read the wrong code. P0157

I don't know anything about the relearn process. But I think I will wrap thread tape or something around the o2 sensor for a better seal.

I doubt the dealership with warranty a $900 CAT Y-Pipe, especially since I removed the o2 sensor that they botched.

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[swathdiver]

You would need a Tech2 or similar to do that. That's the right code, what is the other code?

 

[93blkongreenpro]

You would need a Tech2 or similar to do that. That's the right code, what is the other code?

Ok. Just 1 code. 2 pages. 2nd page just said sensor 2 bank 2.

I cleared it, so let's see what happens. I'm up for inspection in January .

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[Rocket Man]

You should be good to just clear the code. Why do you think a Tech 2 is needed @swathdiver so that the sensor doesn't fail? I've never heard of that, I just replace the sensor and clear the code with a code reader and all is good. All that's needed after that is a drive cycle.

 

[swathdiver]

That's the manual's procedure when replacing O2 sensors.

Heated Oxygen Sensor Resistance Learn Reset Caution

Caution: When replacing the HO2S perform the following:

A code clear with a scan tool, regardless of whether or not a DTC is set
HO2S heater resistance learn reset with a scan tool, where available
Perform the above in order to reset the HO2S resistance learned value and avoid possible HO2S failure.

 

[Rocket Man]

That's the manual's procedure when replacing O2 sensors.

Heated Oxygen Sensor Resistance Learn Reset Caution

Caution: When replacing the HO2S perform the following:

A code clear with a scan tool, regardless of whether or not a DTC is set
HO2S heater resistance learn reset with a scan tool, where available
Perform the above in order to reset the HO2S resistance learned value and avoid possible HO2S failure.

What manual are you referring to?
Edit: never mind, I see that's the recommended procedure for the 2007-up models although I've never heard of anyone having a problem if they didn't. I guess it's possible though.