Not confident with automotive wiring? Have a professional harness builder or tuner do it, or check your work before first power-up. A wiring mistake can damage the ECU, the engine or the car, or start a fire.
100%
Stock ECU being replaced
EMUPRO16-A-2 Injector 1
EMUPRO16-B-1 Auxiliary 1 (WBO heater)
EMUPRO16-B-2 Auxiliary 2 (WBO heater)
EMUPRO16-A-3 Injector 2
EMUPRO16-C-1 Auxiliary 10
EMUPRO16-C-2 Auxiliary 11
EMUPRO16-A-4 Injector 3
EMUPRO16-C-3 Auxiliary 12
EMUPRO16-D-13 Auxiliary 13
EMUPRO16-A-5 Injector 4
EMUPRO16-B-3 Auxiliary 3 (WBO heater)
L no data
EMUPRO16-B-4 Auxiliary 4 (WBO heater)
EMUPRO16-D-19 Auxiliary 14
EMUPRO16-B-6 Auxiliary 6
ISC valve +14V feed
EMUPRO16-A-25 Auxiliary 9
EMUPRO16-D-26 Auxiliary 15
OEM-2
Stock ECU being replaced
AInjector 1
BCooling fan relay
CCondenser fan relay
DInjector 2
EEGR valve
FEGR valve
GInjector 3
HEGR valve
IEGR valve
JInjector 4
KA/C clutch relay
L no data
MFuel pump relay
NVTCS solenoid (intake butterflies)
OFuel pump relay (non-immobiliser)
PISC valve +14V feed
QISC valve low side
RMalfunction indicator lamp (MIL)
GND
GND
EMUPRO16-D-25 Auxiliary 16
E no data
EMUPRO16-A-30 Ignition 1
G no data
EMUPRO16-B-5 Auxiliary 5
EMUPRO16-A-29 Ignition 2
EMUPRO16-B-7 Auxiliary 7
EMUPRO16-A-6 Injector 5
L no data
EMUPRO16-A-7 Injector 6
N no data
EMUPRO16-B-13 Auxiliary 8
R no data
EMUPRO16-A-22 Digital 3
EMUPRO16-A-13 Digital 2
EMUPRO16-A-8 Injector 7
W–X no data
EMUPRO16-A-21 Digital 1 (crank)
Z no data
OEM-3
Stock ECU being replaced
APower ground
BPower ground
CPurge solenoid valve
E no data
FIgnition 1 (coils 1+4, wasted spark)
G no data
HMain relay
IIgnition 2 (coils 2+3, wasted spark)
JFront O2 heater
KEVAP leak detection pump
L no data
MAlternator control
N no data
PRear O2 heater
R no data
SImmobiliser
TVehicle speed
UCharge lamp
W–X no data
YCrank position (CKP)
Z no data
GND
EMUPRO16-A-14 Digital 4
EMUPRO16-A-24 Digital 5 (turbo)
VVT oil-control solenoid +12V feed
EMUPRO16-A-16 Digital 6 (turbo)
G no data
EMUPRO16-A-23 Digital 7
EMUPRO16-A-15 Digital 8
EMUPRO16-D-11 Digital 9 / Analog 19
K no data
5V ref
EMUPRO16-B-16 Knock sensor 1
EMUPRO16-C-19 Analog 4
0V sensor
EMUPRO16-C-32 Precision analog 2
Q no data
EMUPRO16-D-8 Injector 9
EMUPRO16-B-15 +12V switched
U no data
EMUPRO16-C-18 Analog 2
EMUPRO16-C-33 Precision analog 3
EMUPRO16-C-31 Precision analog 1
Y no data
EMUPRO16-C-11 Analog 3
AB no data
EMUPRO16-C-34 Precision analog 4
EMUPRO16-C-10 Analog 1 (MAP)
ECU power +14V (main relay)
EMUPRO16-A-9 Injector 8
OEM-4
Stock ECU being replaced
APower ground
BBrake switch
CPower steering pressure switch
DVVT oil-control solenoid +12V feed
FA/C request
G no data
HNeutral switch
IClutch switch
JVTCS vacuum switch
K no data
L+5V sensor supply
MKnock sensor
NIntake air temperature (IAT)
OSignal ground
PCoolant temperature (ECT)
Q no data
RVVT oil-control solenoid (low-side control)
SIgnition switch (IG1) sense
U no data
VThrottle position (TPS)
WFront O2 signal
XMass air flow (MAF)
Y no data
AARear O2 signal
AB no data
ADFuel level
AEPressure sensor (Mazda: EGR boost sensor)
AFECU power +14V (main relay)
AHEVAP leak detection pump solenoid valve
EMUPRO16
EMUPRO16-A
EMUPRO16
2Injector 1
3Injector 2
4Injector 3
5Injector 4
6Injector 5
7Injector 6
8Injector 7
9Injector 8
11Power GND
12+5V source A
13Digital 2
14Digital 4
15Digital 8
16Digital 6 (turbo)
17Power GND
19Power GND
20Digital GND
21Digital 1 (crank)
22Digital 3
23Digital 7
24Digital 5 (turbo)
25Auxiliary 9
29Ignition 2
30Ignition 1
OEM-2-A Injector 1
OEM-2-D Injector 2
OEM-2-G Injector 3
OEM-2-J Injector 4
OEM-3-K EVAP leak detection pump
OEM-3-M Alternator control
OEM-3-U Charge lamp
OEM-4-AH EVAP leak detection pump solenoid valve
GND
5V ref
OEM-3-T Vehicle speed
OEM-4-B Brake switch
OEM-4-I Clutch switch
OEM-4-F A/C request
GND
GND
0V sensor
OEM-3-Y Crank position (CKP)
OEM-3-S Immobiliser
OEM-4-H Neutral switch
OEM-4-C Power steering pressure switch
OEM-2-Q ISC valve low side
OEM-3-I Ignition 2 (coils 2+3, wasted spark)
OEM-3-F Ignition 1 (coils 1+4, wasted spark)
EMUPRO16-B
EMUPRO16
1Auxiliary 1 (WBO heater)
2Auxiliary 2 (WBO heater)
3Auxiliary 3 (WBO heater)
4Auxiliary 4 (WBO heater)
5Auxiliary 5
6Auxiliary 6
7Auxiliary 7
8+12V supply
9Digital GND (flash drive)
13Auxiliary 8
14+12V supply
15+12V switched
16Knock sensor 1
19Power GND
OEM-2-B Cooling fan relay
OEM-2-C Condenser fan relay
OEM-2-K A/C clutch relay
OEM-2-M Fuel pump relay
OEM-3-H Main relay
OEM-2-O Fuel pump relay (non-immobiliser)
OEM-3-J Front O2 heater
+12V supply
0V sensor
OEM-3-P Rear O2 heater
+12V supply
OEM-4-S Ignition switch (IG1) sense
OEM-4-M Knock sensor
GND
EMUPRO16-C
EMUPRO16
1Auxiliary 10
2Auxiliary 11
3Auxiliary 12
10Analog 1 (MAP)
11Analog 3
18Analog 2
19Analog 4
29Analog GND
30Power GND
31Precision analog 1
32Precision analog 2
33Precision analog 3
34Precision analog 4
OEM-2-E EGR valve
OEM-2-F EGR valve
OEM-2-H EGR valve
OEM-4-AE Pressure sensor (Mazda: EGR boost sensor)
OEM-4-AA Rear O2 signal
OEM-4-V Throttle position (TPS)
OEM-4-N Intake air temperature (IAT)
0V sensor
GND
OEM-4-X Mass air flow (MAF)
OEM-4-P Coolant temperature (ECT)
OEM-4-W Front O2 signal
OEM-4-AD Fuel level
EMUPRO16-D
EMUPRO16
8Injector 9
11Digital 9 / Analog 19
13Auxiliary 13
17Analog GND
18Power GND
19Auxiliary 14
25Auxiliary 16
26Auxiliary 15
OEM-4-R VVT oil-control solenoid (low-side control)
OEM-4-J VTCS vacuum switch
OEM-2-I EGR valve
0V sensor
GND
OEM-2-N VTCS solenoid (intake butterflies)
OEM-3-C Purge solenoid valve
OEM-2-R Malfunction indicator lamp (MIL)
SP-GND · 10 pins
SP-14V · 6 pins
SP-0V · 6 pins
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.