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Tricking the PCM

S

ScottAvalanche03

New Member
Joined
Jan 5, 2011
Messages
4
Just put headers on my Avalanche w/o cats and now I'm getting a P0420 DTC(Bank1 Low Cat Efficiency). Any ideas on how to fool the O2 sensor and or the PCM?
 
Just punched my cats out and getting this code, cleared it and it has been gone for 2 days now. Came on while I was cruising backroads.
 
Did a search for simulators and came up with:

One company that sells them.

A thread on this site where someone made there own

and if you can find someone to do a custom tune they can actually turn the rear sensors off
 
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