I want to replace my oxygen sensor. I know the bad sensor is in bank one, sensor two so I know its downstream, but I do not know which of the two downstream it is. How do I figure this out besides trial and error? This is the first time I have repaired anything by myself, so bear with me if its a stupid question... Thanks!

 

Need a little more info ,What Year ??? What motor ???
Why does it need replaced ???
Was the check engine light on ???

 

Yeh, you might need to know this other stuff. Sorry! =)

It's a 2003 RT 3.0 L. I had a check engine light on and I took it in to get looked at. The mechanic is who told me that it was the bank one sensor two oxygen sensor. He also told me it would cost me $300 to fix it. Hence me visiting this forum.... Thanks for your help.

 

http://www.oxygengeek.com/RenderScri...tid=oxygengeek


Descent O2 sensor prices.

 

real cheap way: wipe the codes, disconnect one, and then get the reading done again to see if it's the same code happy motoring.