04' Blazer O2 Heater?

[jkvette719]

04' Blazer. Dont recall the code but I know it says oxygen heater malfunction Bank1 Sensor 2. There is a sensor in each manifold and one after the Cat. This code would be for the one after the cat. Replaced sensor still have the code. It has 4 pins on the connector. I have 13-14 volts on one pin, around .5volt on another and the other two are grounds. Any ideas? I replaced it thinking I had a bad part, no luck. I think the computer might be telling me the wrong sensor. Thanks in advance.

[Brandon@PPE]

Have you cleared the trouble codes? In the software there is a 'Clear Trouble Codes" button on the Trouble codes tab.

Try clearing the trouble codes, then drive around and see if the code come back.

[jkvette719]

ohh yea many times

[Hansie]

Maybe this helps: http://www.obd-codes.com/p0141

[Brandon@PPE]

Let us know if the above link helps. If not, I'll see if I can dig a little deeper.

[jkvette719]

Talked to a guy I know that does alot of work. He said he ran in to something similar on a newer GM truck and he had to change them all to get it to clear. I plan on rotating the new one around. They are a pain to get to so I have been putting it off Ill read through that tonight. thanks