96 Explorer O2 sensor problem
Thread Starter
|
Senior User
Joined: Aug 2004
Posts: 133
Likes: 0
From: Nanticoke, PA
96 Explorer O2 sensor problem
The check engine light came on today and the first thing to come to mind was O2 sensor. I took it to Autozone to have the codes pulled and sure enough I was right. Code P0420 came up indicating bad O2 sensor bank 1. Now my problem is which of the front 2 sensors is it? Code P0421 (which did not show up in the scan) is also for a bad sensor on bank 1 which indicates to me that each O2 sensor has it's own code. Is P0420 for the driver side or passenger side O2 sensor? Any help would be greatly appreciated. 
Last edited by KawiG5; Apr 5, 2005 at 07:33 PM.
Thread Starter
|
Senior User
Joined: Aug 2004
Posts: 133
Likes: 0
From: Nanticoke, PA
Originally Posted by bulldog3531
bank one is the driver side i just did mine on a 98 sport the electrical connector was a bit tight to get to. good luck
