O2 Sensors
 

Hello peoples, I'm wondering, does anyone know where the O2 Sensors are all at?

I'm needing to find the one at Bank 2..

Need to get rid of this P0051 error code..

The heated O2 sensors sit on the exhaust manifolds I believe bank 2 is the rear bank by the firewall.

I had replaced the O2 sensor closest to the firewall, the one thats directly behind the intake manifold... It's still giving the code... I didn't check the connector for power, but going to when i get the time again.

Yes, you need to check the circuits with a multimeter. There could be something wrong in the wiring.

These sensors don't run on any fuses right? I've looked for fuses for them, never found any so was kinda wondering.. Hopefully nothing is really wrong with the connection cause that'd suck :P

The sensors are connected to the ECM and get their power from there. I kind of hope for the sake of your wallet that it is a connector or something like that. Taht would be a problem in the external circuit. If there is a problem in the internal circuit you have to buy a new sensor. They are costly. That's why you want to make sure there is no problem in the external circuit.

Start with disconnecting the harnesses, inspect them for corrosion and such and reconnect them. Just sliding them off and on can remove corrosion and improve the contacts.
Look for worn off insulation.
Check the circuits for continuity and resistance. I believe the Haynes manual will list a lot of voltage and Ohm values and testing procedures.

you know.. Thats really awesome lol.. i lack a haynes manual, autozone, all parts stores don't have one out here in Georgia...

Georgia! I visited Macon Georgia in 1988. Cherry blossom festival and soul food. A friend showed me some Indian hills and a swamp. You live in a nice state even though there is no Haynes manual for your car available! Try the well stocked local library or the always open Amazon.com.

Greetings!

Is there a Relay for the O2 Sensors? (Yea, havn't got it worked with yet...) LOL... Second baby is due soon so gotta wait. Just trying to get it done soon though.

Problem was... i was doing the wrong sensor! hah, Bank 2 is closest to cylinder #2 which would be in the very front of the engine, closest to radiator. Bank 1 is closest to the firewall.