Rotten egg smell
#11
It looks like someone hacked out the O2 sensors and cats. Not a big deal if a speed density tune was properly done, but I'll bet a six pack that's not the case Your truck will just stay in open loop forever and run off the VE tables in the ECU. Is your CEL disabled too?
I think maybe I should go to junkyard and pull jimmy or blazer complete exhaust system with wiring and O2 sensor then fit it on my car.
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