- Dec 12, 2011
- 4,666
I'm looking at a friends 2014 Pathfinder, has. P0420 Catalyst system efficiency below threshold.
I believe this was an older code, many months ago, but I'm not seeing any issues. Did not specify bank# and my Torque Pro app doesn't show any values for what I believe is the 3rd cat.
Also, I set up this screen to follow while I was driving, and the sensor 2 was showing the rapid change and sensor 1 was steady, like it was the inverse.
To verify, I disconnected the upstream sensor on bank 2, and the CEL showed sensor 1 bank 2 fault, so that still shows that sensor 1 is the upstream.
Here's the screenshots, trims look good, it drives good, but her mechanic says it needs a cat.
This is just pulling away, also, odd that both cats have the exact same temp.
This is steady driving.
I'm not buying that as of yet.
Are there any plugins I can use to see every O2 sensor?
Does the 3rd cat have a sensor?
All input appreciated.
I believe this was an older code, many months ago, but I'm not seeing any issues. Did not specify bank# and my Torque Pro app doesn't show any values for what I believe is the 3rd cat.
Also, I set up this screen to follow while I was driving, and the sensor 2 was showing the rapid change and sensor 1 was steady, like it was the inverse.
To verify, I disconnected the upstream sensor on bank 2, and the CEL showed sensor 1 bank 2 fault, so that still shows that sensor 1 is the upstream.
Here's the screenshots, trims look good, it drives good, but her mechanic says it needs a cat.
This is just pulling away, also, odd that both cats have the exact same temp.
This is steady driving.
I'm not buying that as of yet.
Are there any plugins I can use to see every O2 sensor?
Does the 3rd cat have a sensor?
All input appreciated.