Unplugged 02 and NO CEL

Fletch124

2jz swapped!
Jul 17, 2005
1,282
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Reno, Nevada
I'm having problems getting my car to cruise correctly with MAFTPRO, Rogue_Ant from a MAFTPRO forum is helping me diagnose why. Well anyways he told me to unplug the 02, change some settings and see how it runs. I unplugged the 02 and to my surprise the CEL didnt come on. A problem with my car was that it randomly puts its self into open loop for a moment which makes the car super rich then goes back to closed loop and it runs awesome.

What could cause my CEL to not illuminate? I know for a fact that the bulb isnt burned out, ahaha. When I was wiring my MAFTPRO I noticed a wire was completely missing from the harness plug. But if that was for the 02 which i highly doubt it would without a doubt set a code.