FJ09 2017 P0638 fault
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in FJ09
what to check for this fault code P0638? i already checked the resistance of the Throttle Sensor and Accelerator Sensor and the values was on range. I just changed the 02 sensor with a new one thinking it was causing the fault since it was 6 years ago that i installed the Yamaha ActiveTune AFR closed-loop self-tuning kit. can i just disable the P0638 fault on the ecu?