Exhaust cutout, now codes

[Mike]

I just put on my exhaust cutout before the cat and now im getting 2 codes. One is 33 which is the map and the other is 45 which is o2/rich exhaust. Would the exhaust cutout create code 45 to show up?

 

[sy2675]

Re: Exhaust cutout, now codes

i would think that the cutout if anything would cause the o2 sensor to read lean by allowing o2 in, but i dont know much about much !