Whats sensors are on this circut and how to test? This was an engine and transmission replacement, all sensors were exchange from previous engine.

dealer informed that evap sensor and tcc trans are on 1640 code solution was eliminate evap by key on, wires to sensor measure 12v and solenoid when connected allow air to pass. tcc on wiring diagram colors found and had power sooo the round connector had a pin bent and therefore not connected, straighten pin ALL GOOD

thanks for updating, someone will be helped in the future