incognitoracerr

Ok..I got some headers from a friend for free to put on my cat with my swap..it did not have any fitting for the o2 so I took the car to a welder and he made a hole right before the cat on the downpipe side though right before the where the cat and downpipe meet...he welded the spot for the o2 sensor there and pointing down..my check engine light is still giving me a 01 code for primary o2 sensor...i thought the o2 was bad so i went and purchased another one and plugged it up and i reset the ecu and i stillllll get code 01 for o2...I don't know whats going on...could the o2 be welded and mounted on the wrong spot?

2faz2paz

what year and what motor do you have?

incognitoracerr

I have a 1994 civic ex with a b16a1. I am using my sohc vtec wire harness and a gsr ecu p72

incognitoracerr

Can anyone help?

incognitoracerr

Can anyone offer any suggestions...come on guys...someone help me out here