You might download a “free YD25 pinout” that turns out to be for the or Y24 engine. Or the wire colors are for the European version while you have a Japanese-build.
Always disconnect the battery before working on ECU wiring. Reference values can vary by model year and regional specifications. yd25 ecu pinout free
| Pin | Signal | Note | | --- | --- | --- | | A19 | Crank (+) | Variable reluctance | | A20 | Crank (-) | Shield ground | | A58 | Cam (+) | Hall effect | | A59 | Cam (-) | | You might download a “free YD25 pinout” that
| Pin | Wire Color (Typical) | Function | Importance | | :--- | :--- | :--- | :--- | | | | | | | Pin 22 | Green/White | TDC (Crank) Sensor Signal | Critical for starting | | Pin 23 | Green/Black | TDC (Crank) Sensor Ground | Critical for starting | | Pin 38 | Red/Blue | 5V Sensor Reference | Feeds MAP, Rail Pressure | | Pin 56 | Yellow/Black | Camshaft Position Sensor | Sync for injection timing | | Pin 71 | Black/White | Sensor Ground (Common) | All sensors share this | | Connector F4 | | | | | Pin 106 | Thick Red | Main ECU Power (Battery+) | Keep alive memory | | Pin 113 | Thick Black | ECU Ground (Chassis) | Main earth | | Pin 107 | White | Injector #1 Signal | Starts firing order 1-3-4-2 | | Pin 108 | Yellow | Injector #2 Signal | | | Pin 109 | Green | Injector #3 Signal | | | Pin 110 | Blue | Injector #4 Signal | | | Pin 95 | Grey/Red | SCV (Suction Control Valve) | Fuel pressure control | Reference values can vary by model year and