I have a 96 max and I just put on my b-pipe, I already had my y-pipe on for about a year. After about a week my check engine light comes and and it says all 3 o2 sensors are bad. I put new aftermarket o2 sensors in(bought them from advanced auto) and check engine light is still on. I am not sure what I should do.

Any suggestions?????????

 

You have to reset the ECU after you put in the new sensors. Check the faq on how to do it.

 

check O2 fuses as well , right under your dashboard
had the same problem,
put in new fuse light went away

Nick

 

I reset it like 5 times, hey thanx I will check the fuse today.