Question

I got the engine code P0140 on my Chevrolet, what is the meaning of the code?

Answer 1

Hi there,

This code is for no O2 sensor activity, bank 1 sensor 2. Normally this code is the result of a plugged catalytic converter or a bad O2 sensor. Without any further info on the vehicle, can really only give you generic diag info.

Answer 2

P0140 CHEVROLET Code - O2 Sensor Circuit No Activity Detected Bank 1 Sensor 2
Read more: https://www.autocodes.com/p0140_chevrolet.html