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Originally Posted by Hybrid1990crx
and just out of curiousity, did you forget to put the o2 sensor into the bung on the header or just forget to click it into the harness, cause I'd think you would be able to hear a huge exhaust leak as soon as you started the car if you forgot to put it in the bung.
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when i installed my header, it cam bith a bolt, in the header where the sensor goes, i just trew out the old one, its was all cracked and wires were coroded, so i said ill eventually get a new one, picked up a new one from work, and seems a bit slower now
How can you find out if the O2 sensor is even working??