ECU Technical Reference
Delta 400 ECU technical reference
Hardware identification and connector pin-out.
ECU
Pin-out
Connector pin assignments and electrical descriptions.
Connector A — AMPSeal 776164-1
| Pin | Name | Description | Notes |
|---|---|---|---|
| 1 | Battery Direct | Battery Supply (15A fuse) | Direct Battery Power 6-15V |
| 2 | Ignition | Ignition Switched Supply (10A fuse) | Ignition Key Input |
| 3 | Power Ground 1 | Power Ground | Power Ground |
| 4 | Low Side Output 1 | 3A Open Collector | Injector 1 |
| 5 | Low Side Output 2 | 3A Open Collector | Injector 2 |
| 6 | Low Side Output 3 | 3A Open Collector | Injector 3 |
| 7 | Low Side Output 4 | 3A Open Collector | Injector 4 |
| 8 | Crank/Cam Ground | Digital Ground | Crank/Cam Sensor Ground |
| 9 | Crank Input | VR/Hall - Software Selectable | Crank Sensor Input |
| 10 | Cam Input 1 | VR/Hall - Software Selectable | Inlet Cam Sensor 1 Input |
| 11 | NTC Input 1 | 3.16K pull-up to VREF | Coolant Temp Input |
| 12 | NTC Input 2 | 3.16K pull-up to VREF | Air Temp Input |
| 13 | Ignition 1 | TTL/Power Ignition Output | Ignition 1 |
| 14 | Ignition 2 | TTL/Power Ignition Output | Ignition 2 |
| 15 | Ignition 3 | TTL/Power Ignition Output | Ignition 3 |
| 16 | Ignition 4 | TTL/Power Ignition Output | Ignition 4 |
| 17 | Analog Input 1 | 47k pull-up to VREF | User Configurable 0-5V Analog Input |
| 18 | Cam Input 2 | VR/Hall - Software Selectable | Cam 2 / Wheel Speed |
| 19 | Analog Ground 1 | Analog Ground | Analog Ground |
| 20 | Lambda 1 Input | Weak bias to 450mV | 0-5V Analog Input |
| 21 | CAN 1H | 120 Ohm Terminated | To PC comms DB9 |
| 22 | CAN 1L | To PC comms DB9 | |
| 23 | Low Side Output 5 | 3A Open Collector MFIO | Injector 5 and Lambda 3 Input |
| 24 | Low Side Output 7 | 3A Open Collector w/ recirc diode | Main Relay/PWM1 |
| 25 | Low Side Output 8 | 3A Open Collector w/ recirc diode | Fuel Pump Relay/PWM2 |
| 26 | Low Side Output 9 | 3A Open Collector w/ recirc diode | PWM3 |
| 27 | Low Side Output 10 | 3A Open Collector w/ recirc diode | PWM4 |
| 28 | Low Side Output 11 | 3A Open Collector with pull-up to VBATT via diode | Tacho Output |
| 29 | Low Side Output 6 | 3A Open Collector MFIO | Injector 6 and Lambda 4 Input |
| 30 | Analog Ground 2 | Analog Ground | Analog Ground |
| 31 | NTC Input 3 | 3.16K pull-up to VREF | NTC1 |
| 32 | Analog Input 2 | 47k pull-up to VREF | TPS1 |
| 33 | Analog Input 3 | 47k pull-up to VREF | MAP |
| 34 | VREF | 500mA 5V supply to sensors | 5V Reference |
| 35 | Power Ground 2 | Power Ground | Power Ground 2 |