1999 Ford Explorer XLT 4.0L with code P0156

Question

What is this code for I have a bunch of codes that were read and I already replaced 2 O2 sensors that are before the cats on a 1999 Ford Explorer XLT 4.0L?

Answer 1

Hi there,

This code indicates an issue with the O2 sensor. Here is a list of possible causes.

P0156 FORD - O2 Sensor Circuit Malfunction Bank 2 Sensor 2

Read more: https://www.autocodes.com/p0156_ford.html