i kno if u take ur cats out and replace it w/ an xpipe ur mil will come on...at this time u have to get mil eliminators from steeda or pony express which is cheaper
i kno if u take ur cats out and replace it w/ an xpipe ur mil will come on...at this time u have to get mil eliminators from steeda or pony express which is cheaper
did the light come on right after one of the mods you have posted?I ask because you would not get those codes from installing an off road x- pipe. It would be two different codes because 171 & 174 refer to bank 1 sensor 1 and bank 2 sensor 1 respectivly indicating that there is a lean condition. The rear sensors monitor catylist function and they would be the ones effected by installing an x-pipe without converters.you probably just have a vacuum leak
did the light come on right after one of the mods you have posted?I ask because you would not get those codes from installing an off road x- pipe. It would be two different codes because 171 & 174 refer to bank 1 sensor 1 and bank 2 sensor 1 respectivly indicating that there is a lean condition. The rear sensors monitor catylist function and they would be the ones effected by installing an x-pipe without converters.you probably just have a vacuum leak