XSS Posted May 18, 2006 Report Share Posted May 18, 2006 I just punched out my cats. What do I need to tell my tuner to do to make it right? I guess i could just have the oxygen sensers deleted right? Link to comment Share on other sites More sharing options...
BenKey Posted May 18, 2006 Report Share Posted May 18, 2006 You may want the rear O2s deleted. Other than that your tuner should know if there is anything else. Link to comment Share on other sites More sharing options...
supersub Posted May 18, 2006 Report Share Posted May 18, 2006 been thinking about that is it worth it to drop the cats?On a radix'd 5.3 that is. Link to comment Share on other sites More sharing options...
Krambo Posted May 18, 2006 Report Share Posted May 18, 2006 I just finished punching mine out. I got a code of "fuel trim system lean" so I am sure that it messed up my AFR a bit. Getting on the wide band this Wednesday. You will want to delete the last O2s. Link to comment Share on other sites More sharing options...
zippy Posted May 21, 2006 Report Share Posted May 21, 2006 I just punched out my cats. What do I need to tell my tuner to do to make it right? I guess i could just have the oxygen sensers deleted right? Simply tell him that you have empty cats. If you have to tell the tuner what to do he shouldn't be tuning your truck. You will likely not even notice a tenth of gain in the quarter unless you are well over 500hp. Link to comment Share on other sites More sharing options...
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