bank 1 sensor 2 o2 sensor

1997 FORD ESCORT
200,000 MILES • 2.0L • 6 CYL • 2WD • AUTOMATIC
Avatar
JASON1998
  • MEMBER
  • 1 POST
I have a p0141 code for my 1997 Ford Escort. I know it is a O2 heater circuit malfunction. I need to know where and how to fix this problem.
Feb 27, 2016 at 4:50 AM
Advertisement
Avatar
HMAC300
  • ✓Experienced Mechanic
  • 48,601 POSTS
check items in pics first.....
Images (Click to enlarge)
Attached Media
Attached Media
Feb 27, 2016 at 5:00 AM
Avatar
WRENCHTECH
  • ✓Experienced Mechanic
  • 20,760 POSTS
You have a heater code specifically so most of those things wouldn't apply here. It's not the signal that you have a problem with, just the heater, If it were a power supply fuse it would have knocked pout both sensors so you should be able to eliminate that. That leaves either a bad sensor or related wiring. It's usually the sensor itself with the heater burnt out. This would be the downstream sensor, the one after the converter.
Feb 27, 2016 at 5:44 AM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Ask a new question

Frequently Asked Problems for This Vehicle