P0135 Chevrolet -

Question

Where is this sensor located in the engine compartment

Answer 1

HI there,

P0135 is for a problem on the bank 1 heated O2 sensor, sensor #1. Because you haven't given any info on the model or engine size, all i can tell you is it's the O2 sensor BEFORE the catalytic converter on bank 1. If you have a v6 or v8 then you will have to determine which side of the engine.