: Coolant temperature signal used for cold-start enrichment. VA / VC / IDL (B-10, B-11, B-12) : Throttle position sensor (TPS) signals. Actuator Outputs SPV (C-11)
This is the heart of the fuel system. If the ECU doesn't send a signal to this pin, the engine will not start. It is often paired with a Spill Valve Relay (SVR) TDC and NE Signals: 1kz ecu pinout