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
MS3PROULTIMA-A-28 Fuel pump relay out
MS3PROULTIMA-A-14 PWM / Idle Out 1
MS3PROULTIMA-A-32 Digital switched in 1
MS3PROULTIMA-A-30 PWM out 3
MS3PROULTIMA-C-4 Digital out 1
MS3PROULTIMA-B-20 Digital switched in 2
MS3PROULTIMA-B-29 Digital switched in 3
MS3PROULTIMA-B-28 Digital frequency in 1
MS3PROULTIMA-C-11 Digital switched in 4
MS3PROULTIMA-A-29 PWM out 2
OEM-1
Stock ECU being replaced
ACooling fan relay (low-side)
BA/C condenser fan relay
CStarter input (12V while cranking)
ECheck engine light (MIL)
GA/C clutch relay
KA/C pressure switch (A/C request)
LClutch switch
MVehicle speed sensor (VSS)
QBrake switch
UFuel pump relay (low-side)
MS3PROULTIMA-A-19 Analog in 1
MS3PROULTIMA-A-25 O2 in
MS3PROULTIMA-A-22 Analog In 4
MS3PROULTIMA-A-9 TPS in
MS3PROULTIMA-A-11 CLT in
MS3PROULTIMA-A-20 Analog in 2
5V ref
MS3PROULTIMA-A-23 Analog In 5
MS3PROULTIMA-A-10 MAT in
MS3PROULTIMA-C-10 Digital switched in 5
MS3PROULTIMA-C-3 Digital out 2
MS3PROULTIMA-A-21 Analog in 3
0V sensor
MS3PROULTIMA-B-17 Digital frequency in 2
OEM-3
Stock ECU being replaced
BMAF sensor input
CFront O2 sensor input
DRear O2 sensor input
FThrottle position (TPS)
GEngine coolant temp (CLT)
HEGR boost sensor
I+5V sensor reference
JEGR valve position sensor
KIntake air temp (IAT)
LIdle switch (closed throttle)
MFront O2 heater control
NEGR boost sensor (2nd channel)
OSensor ground
PPower steering pressure switch
GND
ECU power +12V (main relay)
GND
GND
MS3PROULTIMA-A-6 CKP+
MS3PROULTIMA-B-34 Digital Frequency in 1 VR+
MS3PROULTIMA-A-26 CMP+
0V sensor
Permanent +12V (battery)
MS3PROULTIMA-C-2 PWM out 4
GND
MS3PROULTIMA-A-24 Tach out
MS3PROULTIMA-B-13 Spark out G
MS3PROULTIMA-C-1 PWM out 5
MS3PROULTIMA-A-1 High current out 1
MS3PROULTIMA-A-2 High current out 2
MS3PROULTIMA-B-14 Spark out E
MS3PROULTIMA-A-5 High current out 3
MS3PROULTIMA-A-3 Injector out J
MS3PROULTIMA-A-4 Injector out I
MS3PROULTIMA-B-1 Injector out A
MS3PROULTIMA-B-10 Injector out F
OEM-4
Stock ECU being replaced
AChassis ground
BECU power +12V (main relay)
CChassis ground
DChassis ground
ECrank position (CKP) sensor
FCAS SGT (cam trigger)
GCAS SGC (cam sync)
HCrank pickup timing ground (CKP gnd)
IPermanent +12V (battery)
JPRC solenoid (FPR control)
KChassis ground
LTachometer output
NIgnition coil trigger (cyl 1&4)
OEGR vent solenoid
PEGR vacuum solenoid
QIdle air control (IAC) valve
RIgnition coil trigger (cyl 2&3)
TEVAP purge solenoid
UInjector 1 (cyl 1)
VInjector 2 (cyl 2)
WInjector 3 (cyl 3)
XInjector 4 (cyl 4)
MS3PROULTIMA
MS3PROULTIMA-A
MS3PROULTIMA
1High current out 1
2High current out 2
3Injector out J
4Injector out I
5High current out 3
6CKP+
85V+ VREF out 1
9TPS in
10MAT in
11CLT in
13Power ground
14PWM / Idle Out 1
15CKP−
16Logic ground
18Sensor return
19Analog in 1
20Analog in 2
21Analog in 3
22Analog In 4
23Analog In 5
24Tach out
25O2 in
26CMP+
27CMP−
28Fuel pump relay out
29PWM out 2
30PWM out 3
32Digital switched in 1
3512V+ switched power in
OEM-4-P EGR vacuum solenoid
OEM-4-Q Idle air control (IAC) valve
OEM-4-U Injector 1 (cyl 1)
OEM-4-V Injector 2 (cyl 2)
OEM-4-T EVAP purge solenoid
OEM-4-E Crank position (CKP) sensor
5V ref
OEM-3-F Throttle position (TPS)
OEM-3-K Intake air temp (IAT)
OEM-3-G Engine coolant temp (CLT)
GND
OEM-1-B A/C condenser fan relay
SP-0V · 2 pins
0V sensor
0V sensor
OEM-3-B MAF sensor input
OEM-3-H EGR boost sensor
OEM-3-N EGR boost sensor (2nd channel)
OEM-3-D Rear O2 sensor input
OEM-3-J EGR valve position sensor
OEM-4-L Tachometer output
OEM-3-C Front O2 sensor input
OEM-4-G CAS SGC (cam sync)
SP-0V · 2 pins
OEM-1-A Cooling fan relay (low-side)
OEM-1-U Fuel pump relay (low-side)
OEM-1-E Check engine light (MIL)
OEM-1-C Starter input (12V while cranking)
12V+ switched power in
MS3PROULTIMA-B
MS3PROULTIMA
1Injector out A
3Ground
5Ground
7Ground
9Ground
10Injector out F
13Spark out G
14Spark out E
17Digital frequency in 2
18Ground
20Digital switched in 2
28Digital frequency in 1
29Digital switched in 3
34Digital Frequency in 1 VR+
35Digital Frequency in 1 VR−
OEM-4-W Injector 3 (cyl 3)
GND
GND
GND
GND
OEM-4-X Injector 4 (cyl 4)
OEM-4-N Ignition coil trigger (cyl 1&4)
OEM-4-R Ignition coil trigger (cyl 2&3)
OEM-3-P Power steering pressure switch
GND
OEM-1-K A/C pressure switch (A/C request)
OEM-1-M Vehicle speed sensor (VSS)
OEM-1-L Clutch switch
OEM-4-F CAS SGT (cam trigger)
SP-0V · 2 pins
MS3PROULTIMA-C
MS3PROULTIMA
1PWM out 5
2PWM out 4
3Digital out 2
4Digital out 1
10Digital switched in 5
11Digital switched in 4
17Sensor return
18Sensor return
19Sensor return
20Sensor return
21Sensor return
23Keep alive power
OEM-4-O EGR vent solenoid
OEM-4-J PRC solenoid (FPR control)
OEM-3-M Front O2 heater control
OEM-1-G A/C clutch relay
OEM-3-L Idle switch (closed throttle)
OEM-1-Q Brake switch
0V sensor
0V sensor
0V sensor
0V sensor
0V sensor
Keep alive power
SP-14V · 3 pins
SP-GND · 11 pins
SP-0V · 13 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.
63 / 63 connections
Columns ▾
Lengths need a layout. Add bundles in Layout.
Not set yet: signal, colour, stripe, ident.
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