P2270 How do I tell if O2 sensor or bad connection.

Question

With a VOM how can I test if the O2 sensor is bad or if I have a bad connection or a bad wire some where? What voltage and or resistance should I read across what wires on the O2 sensor?

Answer 1

HI there

This code means the sensor is stuck lean. This could be the sensor or a lean condition on that bank. Here is some info for you

P2270 FORD - Oxygen Sensor Signal Stuck Lean Bank 1 Sensor 2

Read more: https://www.autocodes.com/p2270_ford.html