Slow_98GT said:
All 96 and newer cars are not put on the dyno. . . unless the OBDII port doesn't read for some reason. Like droopy said though, if we/they look under the car and do not see any cats, most will fail you for it. Come to think of it, I believe even an aftermarket catted pipe can still fail as the catalytic converters are not OEM or OEM replacement. . .don't quote me on that though. As for the MIL eliminators. . . why spend all that money? Vatozone sells adaptors that set your o2 farther out of the pipe, and it does the same thing, for $5.
I wonder who does the inspections around here. =)
Why use the MIL(s) ... ???
It's like this; the MIL(s) are designed to be used when you have removed your stock cats for whatever reason. Their function is basically to trick the computer in to thinking the cats are still installed when in fact they aren't and therefore no trouble codes/lights are tripped/thrown.
If the computer shows no trouble codes then there is a good chance nobody will do a visual and therefore the vehicle should probably pass inspection.
If you remove the cats you are more than likely going to cause the MIL to come on and this will be an immediate fail (or at least I have been told it is supposed to be failed by the inspector). Some folks have claimed that they have pulled the cats and because they were using unleaded and "clean" gas their trouble codes never tripped but this doesn't seem to be the norm for most cars.
If you are running cats on your car there should be no issue(s) unless you are getting trouble codes due to clogged cats.
I don't know what you are referring to with the "adaptors that set your o2 farther out of the pipe, and it does the same thing, for $5", but if this does the same thing as the MIL eliminators for cars without cats then yes, this does seem cheaper. I might be misunderstanding you about the o2 and if so please set me straight.
I don't see why aftermarket cats would fail simply because they are not the same as stock. In 5 more years or so it would not surprise me if you could no longer get stock replacement cats anyway ... (???)
Just my 2 cents there ...