3800 need spark plug advise for cat code problem

starrGTP

Regular
Mar 15, 2008
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I just put in an Intense PCM and threw a cat code. Figured it was bound to happen to me. I was going to replace the cat with a high flow and put in a 3" downpipe so I went ahead and had that done already. Now I am going to change the plugs. What plugs should I go with and how can I fix the excess fuel going into the cat? Can this be tuned down or is it something I have to live with because of the PCM upgrade code? Need to get this fixed asap cause I am due for emissions.

Basically what plugs and gapped at what should I get?
 
F

fastcash

Guest
Originally posted by starrGTP@Jan 24 2005, 11:23 AM
I just put in an Intense PCM and threw a cat code.  Figured it was bound to happen to me.  I was going to replace the cat with a high flow and put in a 3" downpipe so I went ahead and had that done already.  Now I am going to change the plugs.  What plugs should I go with and how can I fix the excess fuel going into the cat?  Can this be tuned down or is it something I have to live with because of the PCM upgrade code? Need to get this fixed asap cause I am due for emissions.

Basically what plugs and gapped at what should I get?
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what are your mods?
 
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