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Toyota Aygo Wideband O2 sensor retrofit & piggyback or OBD2
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07-17-2021, 09:37 PM
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serialk11r
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spyder2
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You need to emulate the post-cat sensor (it will just read 0V all the time and throw a code), and ideally change the ignition timing, and ideally also run richer at WOT or tweak a combination of other things so that at WOT you don't burn the valves.
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