Quote Originally Posted by yoheer View Post
Regarding CAT protection
Factory Cat protect AFR is 12.2. Is it bad for the whole engine cooling? And what about torque? I know that it raises a little when it goes to rich.
Just about 11.8-12.8

There are Low/High boundaries and Low/Mid/High Pressure parameter. Should i mod them and to what values?

Is it good idea to disable cat protection? Or it's good to leave it alone? If only I'm right in everything that I said above.
I remind that I've deleted CAT.
GM uses the following values for vehicles that were never equipped with catalytic converters:

Min Coolant Temp for CAT Protect = 150°C
CAT OverTemp Threshold (Low Baro) = 1065°C
CAT OverTemp Threshold (Mid Baro) = 1065°C
CAT OverTemp Threshold (High Baro) = 1065°C
CAT OverTemp Air Fuel Ratio = 12.2 AFR

(Although I'd raise the CAT OverTemp Air Fuel Ratio to 14.7 AFR without any fear.)