2000 SS Monte Carlo P1133-HO2S Insufficient Switching Bank 1 Sensor 1 - faulty heated oxygen sensor

Question

he service manual does not have any of those codes you are getting. Try to use a different OBD-II the one you are using is not compatible with your car

Read more: https://www.autocodes.com/qa/ask?follow=31571

I looked at the above for a different year Chevrolet and not a Monte Carlo, why are you saying the same thing for my Monte Carlo?

Answer 1

HI there

This is a generic OBD II code, the information is in the service manual for the monte ss. Here is a link to some of the causes, but the code is in the service manual so this will apply to your ss as well. In most cases the bank 1 front O2 sensor is the cause of the problem.

P1133 CHEVROLET - HO2S Insufficient Switching Bank 1 Sensor 1

Read more: https://www.autocodes.com/p1133_chevrolet.html