Fix: 1mz-fe Ecu Pinout

Note: Pins are numbered. Wire colors are typical but not guaranteed. Check with a multimeter.

| Pin | Function | Wire Color (Typical) | Notes | |-----|------------------------|----------------------|--------------------------------| | A1 | IGT1 (Ignition timing 1)| White | To igniter (cylinder 1) | | A2 | IGT2 | White/Black | Cylinder 2 | | A3 | IGT3 | White/Red | Cylinder 3 | | A4 | IGT4 | White/Blue | Cylinder 4 | | A5 | IGT5 | Yellow | Cylinder 5 | | A6 | IGT6 | Yellow/Black | Cylinder 6 | | A10 | +B (Main EFI relay) | Black/Red | 12V power to sensors/actuators | | A16 | E01 (Power ground) | Brown/White | High-current ground | | A17 | E02 (Power ground) | Brown/White | Second power ground | | A24 | STA (Starter signal) | Black/White | From ignition switch (START) | | A25 | BATT (Backup power) | White/Red | Constant 12V for keep-alive | 1mz-fe ecu pinout

The 1MZ-FE is a 3.0-liter V6 engine produced by Toyota. When diagnosing wiring issues, installing a standalone ECU, or performing an engine swap, knowing the Engine Control Unit (ECU) pinout is critical. However, a critical fact must be understood first: Note: Pins are numbered

| Pin | Wire Color | Function | Signal Type | | :--- | :--- | :--- | :--- | | A01 | B-R | Ignition Coil #1 | 5V square wave | | A02 | R | Injector #1 (Cyl 1) | Ground switched | | A03 | L-Y | Injector #2 (Cyl 2) | Ground switched | | A04 | G-R | EGR Vacuum VSV | 12V duty cycle | | A05 | - | Not Used | - | | A06 | Y | Ignition Coil #2 | 5V square wave | | A07 | B-O | Injector #3 (Cyl 3) | Ground switched | | A08 | L-R | Fuel Pump Relay Control | Ground to trigger | | A09 | G-W | Injector #4 (Cyl 4) | Ground switched | | A10 | B-Y | Ignition Coil #3 | 5V square wave | | A11 | W-L | Injector #5 (Cyl 5) | Ground switched | | A12 | L | Injector #6 (Cyl 6) | Ground switched | | A13 | B | ECU Main Relay Control (M-REL) | 12V output | | Pin | Function | Wire Color (Typical)