ECUMaster EMU PRO-8 is a 94-pin wire-in ECUMaster ECU on 3 connectors: A (34 pins), B (26 pins) and C (34 pins).
It has 8 injector outputs and 8 ignition outputs. The injector drivers are peak-and-hold, so low-impedance injectors run without a resistor pack. Every ignition output can fire a smart coil or a dumb coil directly.
There is one dedicated trigger input, each happy with a VR or a Hall sensor. Two knock inputs cover both banks of a V engine. It has 2 onboard wideband controllers, so a sensor wires straight in.
Drive-by-wire is native: 2 throttles from its own H-bridge outputs. Two CAN buses handle dashes, PDMs and expansion. The maker rates the 5V sensor supply at 4000 mA in total.
Spec sheet
| Connectors | A (34), B (26), C (34)94 pins in this profile |
|---|---|
| Injector outputs | 8peak-and-hold (low-impedance capable) |
| Ignition outputs | 8smart or dumb coils, selectable |
| Dedicated trigger inputs | 1VR or Hall |
| Knock inputs | 2 |
| Onboard wideband controllers | 2 |
| Onboard MAP sensor | Not listed by the maker |
| CAN buses | 2 |
| Drive-by-wire | Yes, 2 throttles |
| High-side outputs | 0 |
| Half-bridge outputs | 6H-bridge pairs for a throttle motor or stepper |
| 5V sensor supply | 4 pins4000 mA stated by the maker |
| Thermocouple (EGT) inputs | 4 |
Worth knowing
- The USB pins are for flash-drive logging; PC connection is over CAN.
Which builds it suits
Of the 58 swap presets in the planner, 53 fit as they are and 4 fit with add-ons; 1 does not fit at all. The add-on it asks for most often is a direct-injection driver module. Where it falls short, it is usually not enough knock inputs. The planner fills anything a preset leaves open with its ordinary defaults, so your own build may land differently.
It runs the Toyota 2JZ-GTE VVTi, Ford Modular 4.6 4V Cobra (NA, cable), Nissan VR38DETT (R35 GT-R) and Mazda Rotary 13B-REW (FD RX-7) presets with nothing added. The GM LT4 (Gen5 6.2 alum, S/C) needs a direct-injection driver module. The BMW N54 (3.0 twin-turbo I6) needs a direct-injection driver module. It can't run the BMW S54 (3.2 NA I6, E46 M3): not enough knock inputs.
Fits as it is 53
- Toyota 1JZ-GE distributor (NA, early)
- Toyota 1JZ-GE VVT-i (coil pack)
- Toyota 1JZ-GTE non-VVTi
- Toyota 1JZ-GTE VVTi
- Toyota 2JZ-GE distributor (NA, early)
- Toyota 2JZ-GE VVT-i (coil pack)
- Toyota 2JZ-GTE non-VVTi
- Toyota 2JZ-GTE VVTi
- GM LS1 (Gen3 5.7 alum)
- GM LS6 (Gen3 5.7 alum)
- GM LS LQ4/LQ9 (Gen3 6.0 iron)
- GM LS2 (Gen4 6.0 alum)
- GM LS3 (Gen4 6.2 alum, car)
- GM LS L76 (Gen4 6.0 alum)
- GM LS L92 (Gen4 6.2 alum)
- GM LS LY6/L96 (Gen4 6.0 iron)
- GM LSA (Gen4 6.2 alum, S/C)
- Ford Coyote 5.0 Gen1 (2011-14)
- Ford Coyote 5.0 Gen2 (2015-17)
- Ford Coyote 5.0 Gen3 (2018-23)
- Ford Modular 4.6 2V (SOHC)
- Ford Modular 4.6 4V Cobra (NA, cable)
- Ford Modular 4.6 4V Terminator (S/C, cable)
- Ford Modular 5.4 4V Ford GT (S/C, cable)
- Ford Modular 5.4 4V GT500 (S/C, DBW)
- Ford Coyote Voodoo 5.2 (GT350, flat-plane)
- Ford Coyote Predator 5.2 (GT500, cross-plane, S/C)
- Ford Barra 4.0 NA (182/190/195)
- Ford Barra 4.0 Turbo (240T/245T/270T/310T/325T)
- Nissan RB20DET
- Nissan RB25DET non-Neo S1 (R33, dumb coils)
- Nissan RB25DET non-Neo S2 (R33, smart coils)
- Nissan RB25DET Neo (R34)
- Nissan RB26DETT (R32/R33, dumb coils)
- Nissan RB26DETT (R34, smart coils)
- Nissan VR38DETT (R35 GT-R)
- Nissan SR20DET (S13)
- Nissan SR20DET (S14)
- Nissan SR20DET (S15)
- Nissan VQ35DE (base, 2003-04)
- Nissan VQ35DE Rev-Up (2005-06)
- Nissan VQ35HR (High-Rev, 2007+)
- Honda K20 (i-VTEC 2.0 NA)
- Honda K24 (i-VTEC 2.4 NA)
- Subaru EJ/FA EJ20 turbo single-AVCS (EJ207 v7-9)
- Subaru EJ/FA EJ20 turbo dual-AVCS (EJ207 GRB 2008+)
- Subaru EJ/FA EJ25 turbo single-AVCS (EJ257 2004-07)
- Subaru EJ/FA EJ25 turbo dual-AVCS (EJ257 2008+)
- Subaru EJ/FA FA20D (BRZ/86 NA)
- Mazda Rotary 13B-REW (FD RX-7)
- Mazda Rotary 13B-MSP Renesis (RX-8 manual, 6-injector)
- Mazda Rotary 13B-MSP Renesis (RX-8 auto, 4-injector)
- Mazda Rotary 20B (Eunos Cosmo 3-rotor)
Fits with add-ons 4
- GM LT1 (Gen5 6.2 alum) with a direct-injection driver module
- GM LT4 (Gen5 6.2 alum, S/C) with a direct-injection driver module
- Subaru EJ/FA FA20DIT (WRX turbo 2015+) with a direct-injection driver module
- BMW N54 (3.0 twin-turbo I6) with a direct-injection driver module
Does not fit 1
- BMW S54 (3.2 NA I6, E46 M3) not enough knock inputs
Plan a build around the ECUMaster EMU PRO-8
Pin table
By connector: A carries 8 injector outputs, 8 ignition outputs and 8 trigger inputs; B carries 2 knock inputs; C carries 20 analog inputs and 6 H-bridge outputs.
Show all 94 pins
| Pin | Function |
|---|---|
| A A1 | Ignition 8 (active/passive coil) |
| A A2 | Injector 1 (low-side peak&hold) |
| A A3 | Injector 2 |
| A A4 | Injector 3 |
| A A5 | Injector 4 |
| A A6 | Injector 5 |
| A A7 | Injector 6 |
| A A8 | Injector 7 |
| A A9 | Injector 8 |
| A A10 | Ignition 7 |
| A A11 | Power GND |
| A A12 | +5V source A (sensor supply) |
| A A13 | Digital 2 (VR/Hall/MR) |
| A A14 | Digital 4 |
| A A15 | Digital 8 |
| A A16 | Digital 6 (turboshaft-speed) |
| A A17 | Power GND |
| A A18 | Ignition 6 |
| A A19 | Power GND |
| A A20 | Digital GND |
| A A21 | Digital 1 (dedicated crank) |
| A A22 | Digital 3 |
| A A23 | Digital 7 |
| A A24 | Digital 5 (turboshaft-speed) |
| A A25 | Auxiliary 9 (low-side) |
| A A26 | Ignition 5 |
| A A27 | Ignition 4 |
| A A28 | Ignition 3 |
| A A29 | Ignition 2 |
| A A30 | Ignition 1 |
| A A31 | CAN 1 high (PC comm) |
| A A32 | CAN 1 low |
| A A33 | CAN 2 high (configurable) |
| A A34 | CAN 2 low |
| B B1 | Auxiliary 1 |
| B B2 | Auxiliary 2 |
| B B3 | Auxiliary 3 |
| B B4 | Auxiliary 4 |
| B B5 | Auxiliary 5 |
| B B6 | Auxiliary 6 |
| B B7 | Auxiliary 7 |
| B B8 | +12V supply (ECU & H-bridge) |
| B B9 | Digital GND |
| B B10 | USB D- (flash-drive logging) |
| B B11 | USB D+ (flash-drive logging) |
| B B12 | +5V source A |
| B B13 | Auxiliary 8 |
| B B14 | +12V supply |
| B B15 | +12V switched (ECU on/off) |
| B B16 | Knock sensor 1 |
| B B17 | Knock sensor 2 |
| B B18 | WBO 2 VGND (LSU 4.9) |
| B B19 | Power GND |
| B B20 | WBO 1 IP (LSU 4.9) |
| B B21 | WBO 1 VS (LSU 4.9) |
| B B22 | WBO 1 RCAL (LSU 4.9) |
| B B23 | WBO 1 VGND (LSU 4.9) |
| B B24 | WBO 2 IP (LSU 4.9) |
| B B25 | WBO 2 VS (LSU 4.9) |
| B B26 | WBO 2 RCAL (LSU 4.9) |
| C C1 | Auxiliary 10 (low-side) |
| C C2 | Auxiliary 11 |
| C C3 | Auxiliary 12 |
| C C4 | Analog 7 |
| C C5 | Analog 10 (2.2kOhm pull-up) |
| C C6 | H-bridge 1A |
| C C7 | H-bridge 2B |
| C C8 | H-bridge 3A |
| C C9 | H-bridge 2A |
| C C10 | Analog 1 (dedicated MAP) |
| C C11 | Analog 3 |
| C C12 | Analog 5 |
| C C13 | Analog 8 |
| C C14 | Analog 11 (2.2kOhm pull-up) |
| C C15 | Analog 13 (1kOhm pull-up) |
| C C16 | Analog 15 (330Ohm pull-up) |
| C C17 | H-bridge 3B |
| C C18 | Analog 2 |
| C C19 | Analog 4 |
| C C20 | Analog 6 |
| C C21 | Analog 9 (2.2kOhm pull-up) |
| C C22 | Analog 12 (2.2kOhm pull-up) |
| C C23 | Analog 14 (1kOhm pull-up) |
| C C24 | Analog 16 (100Ohm pull-up) |
| C C25 | H-bridge 1B |
| C C26 | LIN |
| C C27 | +5V source B (sensor supply) |
| C C28 | +5V source B |
| C C29 | Analog GND |
| C C30 | Power GND |
| C C31 | Precision analog 1 (type-K EGT) |
| C C32 | Precision analog 2 |
| C C33 | Precision analog 3 |
| C C34 | Precision analog 4 |
Other ECUMaster ECUs
The closest ECUMaster unit is the ECUMaster EMU Black. Against it, this one has 8 ignition outputs (the EMU Black has 6), 2 wideband controllers (the EMU Black has 1), 2 CAN buses (the EMU Black has 1) and 94 pins (the EMU Black has 63).
Source: ECUMaster documentation for the EMU PRO-8
Always verify against the manufacturer's manual and your tuner before wiring.