If you are swapping a VVT-i 2UZ into an older truck, you have three options:
: The ECU manages 8 individual ignition coils and fuel injectors (Pins #10 through #80). Position Sensors : 2uzfe ecu pinout
: Many stock ECUs include an integrated immobilizer system that requires a transponder key, amplifier, and coil to start the engine. If you are swapping a VVT-i 2UZ into