1kz Ecu Pinout Site

are vital; often, these ground to the engine intake manifold to ensure a clean signal. Sensor Inputs:

| Pin | Function | Wire Color (typical) | Notes | |-----|-----------------------------|------------------------|-------------------------| | A1 | Battery +12V (backup) | B (Black) | Constant power | | A2 | Injector No. 1 | B-Y (Black-Yellow) | High side drive | | A3 | Injector No. 2 | B-R (Black-Red) | | | A4 | Injector No. 3 | B-G (Black-Green) | | | A5 | Injector No. 4 | B-W (Black-White) | | | A6 | Spill valve control | R-B (Red-Black) | Fuel metering | | A7 | TCV (timing control valve) | R (Red) | Injection timing | | A8 | GND (power ground) | W-B (White-Black) | | | A9 | GND (power ground) | W-B (White-Black) | | | A10 | +B (main relay power) | B-R (Black-Red) | Switched ECU power | | A11 | Not used | – | | | A12 | Glow plug relay control | B-O (Black-Orange) | To glow relay coil | | A13 | AC cut request | R-Y (Red-Yellow) | From A/C amp | | A14 | Stop lamp switch | G-W (Green-White) | Brake signal | | A15 | Injector feedback common | – | | | A16 | Engine coolant temp sensor | R-W (Red-White) | 2-wire sensor | | A17 | Intake air temp sensor | G-B (Green-Black) | In airflow meter | | A18 | TPS (idle contact) | L (Blue) | Idle switch | | A19 | TPS (main signal) | G-R (Green-Red) | 0-5V variable | | A20 | Accelerator position sensor | Y-B (Yellow-Black) | (if electronic pedal) | | A21 | Fuel temp sensor | R-L (Red-Blue) | In injection pump | | A22 | 5V reference (sensors) | V (Violet) | To TPS, MAP, etc. | 1kz ecu pinout

If you don't use the factory ECU to control the glow plugs, use a heavy-duty manual push-button. These engines struggle to start cold without a 5-10 second glow. are vital; often, these ground to the engine