This ECU utilizes a 3-plug configuration (64-pin total). Aescripts Ftuvpass Bundle V551a Download Gratis Better Direct
| Pin No. | Function | Description | | :--- | :--- | :--- | | | Ignition Signal (Cyl 1) | Output to Power Transistor | | 2 | Ignition Signal (Cyl 2) | Output to Power Transistor | | 3 | Ignition Signal (Cyl 3) | Output to Power Transistor | | 4 | Tachometer Output | 12V Pulse signal | | 5 | Ignition Signal (Cyl 4) | Output to Power Transistor | | 6 | Ignition Signal (Cyl 5) | Output to Power Transistor | | 7 | Ignition Signal (Cyl 6) | Output to Power Transistor | | 9 | Power Ground | ECU Ground (to chassis/engine) | | 10 | Power Ground | ECU Ground | | 15 | Crank Angle Sensor (CAS) | 120°/180° Signal (RPM) | | 16 | Crank Angle Sensor (CAS) | 1° Signal (Position) | | 17 | Sensor Ground | Shared ground for TPS, MAF, etc. | | 20 | Battery Constant Power | +12V from battery/fuse | | 28 | Check Engine Light | Output to Dashboard (Ground trigger) | | 41 | Air Flow Meter (MAF) | Signal Input (0-5V) | | 49 | Throttle Position Sensor | Signal Input (0-5V) | | 58 | Ignition Switch Power | +12V switched power | | 101 | Injector #1 | Ground trigger for injector | | 103 | Injector #3 | Ground trigger for injector | | 105 | Injector #5 | Ground trigger for injector | | 108 | Injector Ground | Sensor ground return | | 109 | Battery Constant Power | +12V Backup | | 110 | Injector #2 | Ground trigger for injector | | 112 | Injector #4 | Ground trigger for injector | | 114 | Injector #6 | Ground trigger for injector | 3.2 Case Study: VG30DETT (300ZX Z32) - Zexel Unit Part Number Reference: JECS A18-700 / 23710-60P00 Mission Impossible Rogue Nation Hdhub4u - 3.79.94.248
This technical paper serves as a comprehensive guide for identifying and interpreting the pinout configurations of Nissan Engine Control Units (ECUs) manufactured by Zexel. As these ECUs were predominantly used in vehicles from the late 1980s through the 1990s (the "Golden Era" of Nissan tuning), accurate pinout data is critical for engine conversion specialists, diagnostic technicians, and aftermarket ECU tuners. This document outlines the visual identification methods, common connector architectures, and provides detailed pinout references for prevalent Zexel ECU models. 1. Introduction Nissan vehicles of the 1990s relied on Engine Control Units manufactured primarily by two suppliers: Hitachi and Zexel (often branded as Zexel or Bosch). While functionally similar, Zexel ECUs often differ in pinout assignment, board layout, and internal architecture compared to their Hitachi counterparts.
The Zexel units are particularly notable in the aftermarket community due to their use in popular platforms such as the 300ZX (Z32), Skyline (R32/R33), and various Silvia variants. Incorrect identification of pinouts can lead to immediate ECU failure, injector damage, or wiring harness fires. This paper aims to provide a standardized methodology for working with these units. Before attempting to read pinouts, the technician must verify the ECU manufacturer. Nissan ECUs are typically identified by a metal label on the case exterior.
This system uses a sophisticated 4-plug connector setup.