OXYGEN SENSOR PROBLEMS

bmleach76 · Jun 4, 2006

I PUT A NEW OFF ROAD X-PIPE ON MY 2000 MUSTANG GT. ABOUT TWO WEEKS LATER THE CHECK ENGINE LIGHT CAME ON AND IT WAS AN O2 SENSOR PROBLEM ON BOTH BANKS. I JUST WANT TO SEE IF ANYONE COULD GIVE ME ANY SUGGESTIONS ON WHAT TO DO. I AM GOING TO REPLACE ALL OF THE O2 SENSORS BUT WILL THE CHECK ENGINE LIGHT COME BACK ON?? IF ANYONE COULD HELP ME OUT I WOULD APPRECIATE IT!!

Mike97gt · Jun 4, 2006

ok first turn the caps off.. thats very annoying... next we need the codes themselfs.. there could be a bunch of different things wrong..

you could replace the 02's and have the light come back on 5 minutes later. so come back with caps off and codes.

BlownStangGT · Jun 4, 2006

Your problem is probably the fact that you dont have the o2 sims in the rear. I know on foxes you dont need them, but on 96+ cars I think you have to use o2 sims to get the engine to not spit out them codes.

Mike97gt · Jun 4, 2006

BlownStangGT said:
Your problem is probably the fact that you dont have the o2 sims in the rear. I know on foxes you dont need them, but on 96+ cars I think you have to use o2 sims to get the engine to not spit out them codes.

you don't need them on foxes becuase the don't have rear 02's they are OBD1 cars...

that is most likely what his problem is, but I want to see the codes before I recomend anything..

if he did'nt install the sims or if they are defective he will have cat inefficiency codes for both banks.

BlownStangGT · Jun 4, 2006

svttech76 said:
you don't need them on foxes becuase the don't have rear 02's they are OBD1 cars...

that is most likely what his problem is, but I want to see the codes before I recomend anything..

if he did'nt install the sims or if they are defective he will have cat inefficiency codes for both banks.

Yeah thats what I fig...Im still learning this new age 4.6 stuff haha

bmleach76 · Jun 4, 2006

ILL GET THE CODES AND GET BACK TO YOU. WHAT DO YOU MEAN BY CAPS? THIS STUFF IS KINDA NEW TO ME

Mike97gt · Jun 4, 2006

bmleach76 said:
ILL GET THE CODES AND GET BACK TO YOU. WHAT DO YOU MEAN BY CAPS? THIS STUFF IS KINDA NEW TO ME

I mean turn the capital letters off so your typing looks like the rest of us.

get back with the codes and we should be able to point you in the right direction

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