Pinouts and Wiring Diagrams
From M-Tech Automotive
The M-Tech V4 Engine Management System utilises an AMPSeal connection, allowing water-tight, automotive grade connectivity within the engine bay. The ECU can be supplied with either the plug and pins alone, or with a ready made 2 meter loom. In either case, there are some fundamental connections, which are needed for general ECU operation, as well as an optional selection of features such as Launch control, Boost control and tachomoeter output among others.
The pins can be indentified by the numbers printed into the back of the AMPSeal plug. With the wires, the first is the main colour, the colour in brackets is the 'stripes' colour. i.e Green(Blue) would be a green wire with s blue stripe.
| V4 Pin Number; | Function | Colour | Current(Max) |
|---|---|---|---|
| 1 | COIL D | Blue(Yellow) | 16A |
| 2 | COIL GND | Black | 16A |
| 3 | COIL GND | Black | 16A |
| 4 | S-RX | NC | NA |
| 5 | GND | Black | 16A |
| 6 | Launch Control | Black(White) | 10A |
| 7 | TPS SIGNAL | Dark Blue | 10A |
| 8 | 12VDC | Red | 10A |
| 9 | IAC-1B | Green(White) | 10A |
| 10 | IAC-2A | Green(Red) | 10A |
| 11 | Fuel Pump | Purple | 10A |
| 12 | INJ 2 | Green | 16A |
| 13 | COIL A | ||
| 14 | S-TX | NC | NA |
| 15 | TPS VREF | Grey | 10A |
| 16 | GND | Black | 16A |
| 17 | Knock Input | White(Red) | 10A |
| 18 | Coolant | Yellow | 10A |
| 19 | VR-1 | Sheilded | NA |
| 20 | GND | Black | 10A |
| 21 | IAC-1A | Green(Blue) | 10A |
| 22 | IAC-2B | Green(Black) | 10A |
| 23 | INJ 1 | Blue | 16A |
| 24 | COIL B | Blue(Red) | 16A |
| 25 | COIL C | ||
| 26 | PWM Idle | White(Blue) | 10A |
| 27 | Boost Control | White(Green) | 10A |
| 28 | Sw. Maps | White(Purple) | 10A |
| 29 | IAT | Orange | 10A |
| 30 | Lambda/O2 | Pink | 10A |
| 31 | Cam VR | Shielded | NA |
| 32 | Tacho Out | Slate | 10A |
| 33 | Output 1 | Dark Green | 10A |
| 34 | INJ GND | Black | 16A |
| 35 | INJ GND | Black | 16A |
