My check engine light came on today. So i took it to the local auto zone and had it checked. They gave me a code of P1133 but did not know what was wrong with the car. I looked online and the description of this code is:

HO2S insuffcient switching sensor 1?

Does anybody know what this code means in lamens terms.

Thanks in advance

 

probably means ur O2 sensor is not switching. regularly they switch rich to lean constantly. volts range is 0-1. so it switchs from low to high.