Question

1998 Ford Windstar with engine code P0135, I have changed the o2 sensors and still get the code. You can drive along the way after clearing code before check engine lite comes on.

Answer 1

Hi there,

Since replacing the sensor hasn't solved the issue, it's likely a wiring problem. Here is some more info for you.

P0135 FORD - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1

Read more: https://www.autocodes.com/p0135_ford.html