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31/03/2021 7:28 pm
Topic starter
Hey Scotty, so I just recently replaced my entire exhaust system on my 91 Toyota Pickup with the 22re engine. When I did it, I installed it with California emissions O2 sensors, but with a non California cat converter, so do you think that could be causing my engine to run with the wrong air fuel ratio?
thanks a bunch
Are you experiencing issues?
Every once in a while when it’s idleing it smells like gas so I was wondering if that could be cause it to run rich
2 Answers
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31/03/2021 7:53 pm
Not likely. The O2 sensor for the fuel trim reading is located BEFORE the catalytic converter.
Ok
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02/04/2021 7:07 pm
What do your STFT and LTFT numbers look like? That should indicate if it’s running rich or lean.
