2003 4.6 ford expedition codes p0135 p0155 where are they located

Question

Expedition doesn't want to always start.. scan codes p0135 p0155where are the sensors at

Answer 1

Hi there,

These sensors are in the exhaust before the catalytic converters. Here is a diagram.

And here is some more info for you.

P0155 FORD - O2 Heater Circuit Bank 2 Sensor 1

 

 

Read more: https://www.autocodes.com/p0155_ford.html