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Automotive Innovations
December 26th, 2007, 07:38 AM
What would need to be adjusted as far as parameters go when a cat is removed on a vortec 4200?

SOMhaveit
December 26th, 2007, 08:41 AM
I believe you delete the o2 sensors after the cats. I think you do that in engine diagnostocs dtc mil. No mil for bank 1 sensor 2 and bank 2 sensor 2.

Rhino79
December 26th, 2007, 02:50 PM
And disable cat protection.

joecar
December 27th, 2007, 01:20 AM
Offroad only usage disclaimer applies.

Chevy366
December 27th, 2007, 02:50 AM
Wow you can tune a P12 , or is this a older 4.2 L ?

ScarabEpic22
December 27th, 2007, 10:52 PM
Wish us P10 guys could remove Cat Over Temp protection...