Question

2003 Ford Escape Limited 3.0L with engine code P0135. After the flex pipe on my exhaust, there's a separation. Still attached just play so the section mounted to the engine floats inside of the flex pipe. Could this be causing my o2 sensor code to appear?

Answer 1

HI there,

This code is for the bank 1 O2 sensor, sensor #1. It is the sensor up in the manifold and likely the flex pipe issue after it is not causing the problem.

Answer 2

P0135 Ford Code - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
Read more: https://www.autocodes.com/p0135_ford.html