O2 Sensor Troubleshooting
psi sensors can be tricky. Make sure the harness connector matches the color of the o2 sensor connector.
there is 2 different types a black and a white colored connector.
I dealt with a customer who had a k5 blazer and his grounds( tan wire) where not grounded good enough.
Also, make sure you are in closed loop and not OL Fault
you can post your HPT file and i can review it if you like.
there is 2 different types a black and a white colored connector.
I dealt with a customer who had a k5 blazer and his grounds( tan wire) where not grounded good enough.
Also, make sure you are in closed loop and not OL Fault
you can post your HPT file and i can review it if you like.
i believe psi recommends Denso
White Plug ( not sure what the difference is but it maybe length, one part # may work for both sides)
DENSO 2344286 (Left)
DENSO 2344651 (Right)
Black Plug DENSO 2344025
White Plug ( not sure what the difference is but it maybe length, one part # may work for both sides)
DENSO 2344286 (Left)
DENSO 2344651 (Right)
Black Plug DENSO 2344025
Thread Starter
Staging Lane
Joined: Jul 2022
Posts: 70
Likes: 3
psi sensors can be tricky. Make sure the harness connector matches the color of the o2 sensor connector.
there is 2 different types a black and a white colored connector.
I dealt with a customer who had a k5 blazer and his grounds( tan wire) where not grounded good enough.
Also, make sure you are in closed loop and not OL Fault
you can post your HPT file and i can review it if you like.
there is 2 different types a black and a white colored connector.
I dealt with a customer who had a k5 blazer and his grounds( tan wire) where not grounded good enough.
Also, make sure you are in closed loop and not OL Fault
you can post your HPT file and i can review it if you like.
Ok - I have the white connector but I didn't realize there was a right and left part number. I'll have to see what the difference is. Interesting.
I did check that the sensor wires are the same color as the harness wires and everything looked pinned correctly.
I also checked for continuity and they all checked out.
I had the PCM tuned but do not have HPT. I'm wondering if it might be a good investment to get it for situations like this with troubleshooting.
Ok - I have the white connector but I didn't realize there was a right and left part number. I'll have to see what the difference is. Interesting.
I did check that the sensor wires are the same color as the harness wires and everything looked pinned correctly.
I also checked for continuity and they all checked out.
I had the PCM tuned but do not have HPT. I'm wondering if it might be a good investment to get it for situations like this with troubleshooting.
I did check that the sensor wires are the same color as the harness wires and everything looked pinned correctly.
I also checked for continuity and they all checked out.
I had the PCM tuned but do not have HPT. I'm wondering if it might be a good investment to get it for situations like this with troubleshooting.
Thread Starter
Staging Lane
Joined: Jul 2022
Posts: 70
Likes: 3
