YEAH, see my post on Boomer's truck.EdwardETraylorIII said:Droopy,
I chopped my cats off.. In order for the computer not to receiver a code (since I took away the two O2 sesnors before the second set of cats, I have to plug something in the SIMulates the O2 senors to the PCM... Those are O2 sims!
Clear as mud, right?
John,John Hennessey said:We have 2 modified Rams in the shop that are running without cats and have yet to turn on the check engine light. As far as I have seen, sims dont seem to be necessary so far. What about any of you who have deleted the cats?