CAS P0340 Upgrade?

[puskaitis]

I have to replace my CAS because I have a Code P0340. I have cleared and cleaned. It still returned.

Now I am going to pull it and replace it. I have two questions. Sorry if I repeated myself in two other forums. I have searched for this a bit.

1. Why would I consider changing to a 1G sensor on my GST? It sounds like work.

2. Does anyone know about RockAuto selling an AirTex CAS (2G) for about $48 or ACDelco(1G) for $34?

 

[dave99gst]

1. RRE Instructions this explains why.
2. i dont know anything about that.

 

[puskaitis]

I'll start searching there as well! Thanks.