The Zexel ECU is a type of engine control unit developed by Nissan's in-house tuning division, Zexel. It's used in various Nissan models, including the 300ZX, 350Z, and Skyline. The Zexel ECU is known for its advanced features, such as fuel injection, ignition timing control, and boost pressure management.
| Pin # | Function | Wire Color (Typical) | Description | | :--- | :--- | :--- | :--- | | | Battery +12V | White/Red | Constant power from battery (fused). | | 2 | Ignition Switch | Black/White | +12V when key is ON. | | 3 | ECU Ground | Black | Main ground to chassis/engine. | | 4 | Sensor Ground | Black/Yellow | Ground return for TPS and sensors. | | 50-54 | System Ground | Black | Additional grounds for injectors/solenoids. | nissan zexel ecu pinout work
Most Zexel ECUs use (sometimes labeled A, B, C) or a single 54-pin rectangular connector . For our pinout work, we’ll focus on the most common 54-pin configuration used in the TD42Ti. The Zexel ECU is a type of engine
The ZEXEL ECU is slow by modern standards (8 MHz processor), but it is robust. The pinout work is tedious, not technically hard. The real issue is the . | Pin # | Function | Wire Color