JonnyGT

i have a 00 gt with bassani x pipe with catsand flowmaster from the cats back i have mil eliminators on the o2 sensor but its still throwing me codes thats both bank1 sensor 2 and bank2 sensor2 are "O2 Sensor Heater Circuit Malfunction" any ideas

Brute03

did you clear the codes after installing the MIL's?

redbullitt

mils can be bad sometimes, and you can shut them off with a tune if you have to. The light wont do anymore than annoy you if that is the only reason it is on. I had mine on for a long time before i got it reflashed to get rid of it; never had any problems

Chopper

You don't need MIL eliminators when you are using cats.
O2 extensions are what you should have bought.

Brute03

oops, i didn't even realize he had cats [:-]but some hi-flow cats will still trigger the CEL though. if you're getting the "catalyst below threshold" code, your mil's are probably junk

JonnyGT

they are high flow cats and i had cleared the codes after install