Ignition Feedback signal. The coils send a confirmation signal back to the ECU. If the ECU does not see an IGF signal, it will cut fuel to prevent unburnt gas from damaging the catalytic converters.
The 2UZ-FE ECU pinout configuration varies depending on the year and model of the engine. Some common configurations include:
The article will be comprehensive, covering connector types, pin assignments for sensors and actuators, diagnostic reference values, and practical advice for swaps. I will cite specific lines from the sources, such as details about the ECM power source circuit, pinout values for diagnostic parameters, immobilizer pins, and information about the SFI system and ignition control. 2uzfe ecu pinout
Crankshaft Position Sensor signals (essential for engine RPM and timing calculation).
Depending on the vehicle and year (1998–2007), the 2UZ-FE ECU (Engine Control Module) typically uses three main connectors labeled , B , and C (sometimes D for VVT-i variants). Ignition Feedback signal
| Sensor/Actuator | Factory ECU Pin | Wire to Aftermarket | | :--- | :--- | :--- | | Crank Position (G1/G2) | E6-16 & E6-18 | Dedicated VR+ / VR- input | | Cam Position (G Signal) | E6-17 | Digital Input | | TPS Signal | E6-2 | Analog 0-5V Input | | ECT Sensor | E6-7 | Analog Temp Input | | IAT Sensor | E6-11 (On MAF) | Analog Temp Input | | Injector #1 | E5-10 | Injector Output 1 | | Ignition Coil #1 | E7-4 | Ignition Output 1 | | Fuel Pump | E7-6 | Aux Output (Ground) |
Features 32-bit and 16-bit CPUs with specific connectors for the A/F ratio sensors (Bank 1/Bank 2) and immobilizer system integration. Tundra & Sequoia: The 2UZ-FE ECU pinout configuration varies depending on
For those performing swaps, specialized video guides on building a custom 2UZ harness or identifying connectors can help visualize the physical plugs alongside these diagrams.
Retain the original key, key ring antenna, and amplifier module from the donor vehicle and wire them directly to these pins.