P0141 - Oxygen Circuit Heater Malfunction
Thread Starter
|
Cargo Master
Joined: Nov 2015
Posts: 3,422
Likes: 938
From: Fort Worth, TX
P0141 - Oxygen Circuit Heater Malfunction
We bought this 2005 3.0L a few weeks ago. It wouldn't pass the emissions test required for registration due to the Bank 1, sensor 2 oxygen sensor circuit. I have replaced the pigtail and the sensor and the code persists. Pinpoint testing seems like the logical next step. I have a shop manual on CD for a 2003 but it doesn't have any wiring diagrams, and the Chilton's I have for the 03 is even more useless. Where can I find diagrams that show pin numbers? Or is there an easier way to trouble shoot this problem?
FTE Community Team
Joined: Dec 2023
Posts: 8,788
Likes: 4,242
From: sussex county, nj
you can purchase a short term with all the info you may need for your car in here https://www.motorcraftservice.com/Home/Pricing
Cross-Country
Joined: Dec 2023
Posts: 99
Likes: 30
From: Rochester Mn
Here’s a couple of diagrams in a forum on the internet for 2004 and 2006 that would help you understand the pin out of the sensors.
escape.https://www.escape-city.com/threads/...se-help.78055/
escape.https://www.escape-city.com/threads/...se-help.78055/
Thread
Thread Starter
Forum
Replies
Last Post
