PO401 - Backpressure Sensor
 

Looking thru the forum and various posts/replys. Awesome site guys. I have a 98 Taurus with a po401 code. I can see (buried in the rear) thesensor and hoses attached to it. Any easy ways to get to it / replace it. I have little hands but don't think that will help much, any tricks from all the wisdom I see out here? Thank you. Paul

RE: PO401 - Backpressure Sensor
 

I think this one is mounted on the firewall (not that it will stoop a fire). It sets in a metal bracket with the hose coming out of the bottom. A screwdriver will do the trick, just pry the hose off the bottom, then use the screwdriver the pry the sides and work the sensor up. Easy to do.

RE: PO401 - Backpressure Sensor
 

Thank you for the response.It was not mounted on the firewall nor where it is shown in my Haynes 1996-1998. It was located (standing in front on vehicle) in the rear, right, buried/under the air intake apparatus about 8" in front of the firewall.It was a pain to get to, no sight, just feeling. Anyone doing this in the future I would suggest marking/removing hoses attached and plug first, saturate a cotton ball with WD40, and use one of thosebutton parts grabber to daub the mounting studded threads first.