Hi guys,
I have an 02 silverado 1500 with Quadrasteer an I need to replace the drivers side pre cat 02 sensor.What is the easiest way to do it and do I need any special tools? Thanks for any help
P.S. The reason I think its the sensor is I got a Trouble code of P420 Bank 1.

 

An O2 sensor socket will make the job a little easier

 

if you got an autozone near you they rent out the sockets for you there