Looks like one of my oxygen sensors might be going bad... I got the following code:

• P1133: Oxygen Sensor System - Too Few O2S R/L and L/R Switches . (Bank 1 - Sensor 1)


Can you guys tell me exactly where this sensor is located? Hoping its an easy fix.

 

Hey Carlos....

Pretty easy. An I5 only has one bank (one exhaust manifold because it is a straight head not a V which has one on each side).
There are two positions, sensor #1 and #2. #1 is the front one closest to the head, #2 is farther downstream.

They are numbers 2 and 5 in the diagram. The No. 2 in the diagram is position 1. Might look into an O2 changer socket if you do not have one, it has a slot on one side for the O2 wires to go through. I made mine out of an old spark plug socket years back.

 

On the exhaust manifold.. Cut the wires, put a deep socket on it to remove.

 

Perfect, thank you both!

 

Just a quick update... replaced the sensor with AC DELCO part #213-3207, took me about 10 minutes. Cleared the code and it hasn't come back. I wish every job on my H3 could be this easy.