: Many stock ECUs include an integrated immobilizer system that requires a transponder key, amplifier, and coil to start the engine.
For common applications like the 2004–2006 Toyota Tundra or Land Cruiser 100, the Engine Control Module (ECM) uses multiple connectors (labeled E3 through E7) to manage the Sequential Fuel Injection (SFI) and ignition systems. Terminal Symbol Connector-Pin Description Standard Voltage/Condition EFI Main Relay 9–14 V (Ignition ON) +B / +B2 Power source for ECU 9–14 V (Ignition ON) VC Sensor power supply 4.5–5.5 V (Ignition ON) NE+ / NE- E5-25 / E5-24 Crankshaft Position Pulse generation (Engine idling) G2+ / G2- E5-19 / E5-29 Camshaft Position Pulse generation (Engine idling) #10 to #80 E5/E7 pins Fuel Injectors 1–8 Pulse generation (Engine idling) IGT1 to IGT8 E7/E5 pins Ignition Signals Pulse generation (Engine idling) M+ / M- E7-5 / E7-4 Throttle Motor Pulse generation (Engine idling) Key Wiring & Component Guides 2uzfe ecu pinout
Have a specific pin you are stuck on? Post the connector shape and wire color; the community runs on shared pinout data. : Many stock ECUs include an integrated immobilizer
: System grounds essential for noise-free signal processing. Practical Application & Resources Post the connector shape and wire color; the
Some 2UZ ECUs will not allow the engine to rev past a certain point or may run poorly if they don't see a "Park/Neutral" or "Drive" signal.