Quote:
Originally Posted by johnlvs2run
How did you discover all of these?
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Well the primary o2 was throwing random codes all pertaining to the primary sensor. It was so messed up the computer didn't even really know what was wrong with it. On top of that, sometimes it would say I was in lean burn at 90% throttle lol. Impossible.
The back cat, I fixed the exhaust leak and the car wouldn't move under its own power, so I undid the exhaust leak and my power came right back.
Secondary o2 sensor is fine, there is just too much exhaust flow now due to no back pressure from the #2 cat because I hollowed it out. So I had to bring the o2 sensor away from the exhaust flow, spark plug anti-fouler worked perfect for this.
It was a long, gas wasting experience.