ECUMaster EMU Classic pinout
ecurecovery.com/pinouts/ecumaster/emu-classic · Every pin checked against 2 ECUMaster documents · data checked 2026-11-01
ECUMaster EMU Classic pinout
Every pin of the 24-pin Black and 24-pin Grey connectors, with ECUMaster's own pin names. Tap a pin to see what it does.
Every pin checked against 2 ECUMaster documentsPick any pin on the drawing or in the table to see its function and the documents it was checked in.
ECUMaster EMU Classic connector Black pinout (24-pin)
| Pin | Function |
|---|---|
| B1 | EGT in #1 |
| B2 | Knock Sensor in #1 |
| B3 | Analog In #2 |
| B4 | CLT In |
| B5 | WBO Vs |
| B6 | Camsync In #2 |
| B7 | Primary trigger |
| B8 | Ignition coil #5 |
| B9 | EGT in #2 |
| B10 | Knock Sensor in #2 |
| B11 | Analog In #3 |
| B12 | TPS In |
| B13 | WBO Ip |
| B14 | VSS In |
| B15 | Camsync In #1 |
| B16 | Ignition coil #4 |
| B17 | Ecu Ground |
| B18 | Sensor Ground |
| B19 | Analog In #4 |
| B20 | Analog In #1 |
| B21 | IAT In |
| B22 | WBO Vs/Ip |
| B23 | +5V supply |
| B24 | Power Ground |
ECUMaster EMU Classic connector Grey pinout (24-pin)
| Pin | Function |
|---|---|
| G1 | Ignition coil #6 |
| G2 | Stepper motor #1 (A) |
| G3 | Stepper motor #2 (A) |
| G4 | AUX 6 |
| G5 | AUX 3 |
| G6 | Injector #4 |
| G7 | Injector #1 |
| G8 | Ignition coil #1 |
| G9 | Ignition coil #3 |
| G10 | Stepper motor #1 (B) |
| G11 | Stepper motor #2 (B) |
| G12 | AUX 5 |
| G13 | AUX 2 |
| G14 | Injector #5 |
| G15 | Injector #2 |
| G16 | Ignition coil #2 |
| G17 | Power Ground |
| G18 | Power +12V |
| G19 | WBO Heater |
| G20 | AUX 4 / Tacho |
| G21 | AUX 1 |
| G22 | Injector #6 |
| G23 | Injector #3 |
| G24 | Power Ground |
ECUMaster EMU Classic pins at a glance
- Which pins are the crank and cam inputs on the ECUMaster EMU Classic?
- Camsync In #2: pin B6. Primary trigger: pin B7. Camsync In #1: pin B15.
- Which pins are the injector outputs on the ECUMaster EMU Classic?
- Injector #4: pin G6. Injector #1: pin G7. Injector #5: pin G14. Injector #2: pin G15. Injector #6: pin G22. Injector #3: pin G23.
- Which pins are the ignition outputs on the ECUMaster EMU Classic?
- Ignition coil #5: pin B8. Ignition coil #4: pin B16. Ignition coil #6: pin G1. Ignition coil #1: pin G8. Ignition coil #3: pin G9. Ignition coil #2: pin G16.
- Which pins are ground on the ECUMaster EMU Classic?
- Ecu Ground: pin B17. Sensor Ground: pin B18. Power Ground: pins B24, G17, G24.
- Which pins power the ECUMaster EMU Classic?
- Power +12V: pin G18.
- Which pins are the sensor supplies on the ECUMaster EMU Classic?
- +5V supply: pin B23.
- Which pins are the wideband sensor connections on the ECUMaster EMU Classic?
- WBO Vs: pin B5. WBO Ip: pin B13. WBO Vs/Ip: pin B22. WBO Heater: pin G19.
ECUMaster EMU Classic pinout sheet
A printable sheet with every pin, made from the checked data on this page.
Where this comes from
Only ECUMaster's own documents. Pin names and notes are written exactly as ECUMaster writes them.
ECUMaster pinout for this ECU
ECUMaster hardware manual
How we checked it
- We start from ECUMaster's pinout document for this ECU.
- Every pin is read again in a second ECUMaster document: the compact pinout sheet, the user manual or, for pins that are the same on a sister ECU, that ECU's pinout. Where no second document lists a pin, we read it a second time by eye from the same pinout.
- A pin is only shown when both readings give the same function. ECUMaster's documents name no wire colours, so none are shown.
- Notes are ECUMaster's own descriptions from its pinout.
ECU Recovery is not affiliated with ECUMaster. ECUMaster and its product names are trademarks of ECUMaster. If your harness came with its own diagram, check your wiring against it.
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