BMW S54 PNPECU Wiki Pro V2
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PNPECU MaxxECU S54B32 Pro solution
This page refers to version 2 PNPECU S54B32 solution only. Make sure to check the adapter tag for your version.
25/04/2023 - Version 5 is latest.
PNPECU has developed the S54B32 solution to satisfy customer requests to allow the S54B32 engine to be fully controlled
Transmission compatibility
This is a complicated subject as at the time of writing there are solutions for external control of DCT, 6HP and 8HP transmissions out of BMWs, at the same time MaxxECU provides it´s standardized can bus output which multiple transmission controllers are able to make use of for just about any transmission out there.
There is no direct support for the original 6HP BMW TCU and is very unlikely it will ever exist.
For direct PNP communications with a stock BMW DCT transmission with a BMW TCU refer to this page -
https://www.maxxecu.com/webhelp/advanced-bmw_dct.html
what this means is that the BMW TCU believes it´s listening and talking to an OEM BMW DME.
The MaxxECU is not directly controlling the transmission but sending and receiving signals that emulate the BMW DME.
MaxxECU is working on adding other BMW newer transmissions to the emulation compatibility list.
100% compatible with all manual gearboxes!
S54B32 OEM Sensors Usage
• MAF is not used
• Pre cat lambda sensors are not used
• Post cat sensors are not used
• Air temp sensor can be used if the MAF is installed
• Knock sensors - knock for cylinders 3/4 are not used as only two inputs exist in the MaxxECU
• Camshaft signals - used as OEM
• Coolant temperature - used as OEM
• TPS sensors - used as OEM
• Pedal position sensors
• Radiator output temp sensor - used as OEM
• Brake light - used as OEM
• Clutch switch - used as OEM
• Steering wheel switches - used as OEM
• Dynamic switch - used as OEM
• Vehicle Speed Sensor Rear Right - used for vehicle speed
• AC signals from vehicle - used as OEM
• Oil level switch - used as OEM
• CAT Exhaust temp sensor - used as OEM
S50B32 OEM Actuator Usage
• Ignition coil wiring - see options below for more details
• Tachometer signal
• Electric fan
• Fuel pump relay
• Idle control valve
• Vanos advance and retard solenoids for both cams
• DBW Motor
• Dynamic Switch LED
• Fuel tank vent valve
CAN BUS Compatibility
The E46 the S54 originally came in did communicate with the rest of the vehicle via CAN BUS. Thanks to the MaxxECU it is possible to fit the engine into other BMWs also that require information via CAN BUS
5/11/2022 -
• E46 - compatible with BMWs of similar vintage
• E39 - compatible with BMWs of similar vintage
• E9x - compatible with BMWs of similar vintage
MaxxECU provides OEM BMW CAN BUS output for the above BMW vehicles. It also supports a vast array of other cars which a S54B32 can be fitted to thanks to that. Refer to this webpage for latest options and relevant information -
https://maxxecu.com/webhelp/can-oem.html
Options at ordering
Not everyone is going to need or want the same thing with their ECU conversion.
Ignition outputs
• Smart coils - Customer will install logic coils in place of original coil wiring
• IGBT Output box - Stock coils can be retained
• VAG R8 coils and connectors - PNPECU supplied R8 coils, customer will install the coils into the original coil wiring or add their own wiring
• VAG R8 coils and connectors - PNPECU supplied R8 coils, coil adapters also for PNP fitment
MaxxECU DCT Adapter loom
This is a selectable option so that the webstore doesn´t incorrectly calculate shipping cost
EGT Sensor
This is a selectable option so that the webstore doesn´t incorrectly calculate shipping cost
• Single is for when you are planning to monitor pre turbine inlet temperature
• Dual is for when you are planning to monitor pre turbine inlet temperature on a twin setup or each side of the engine
• Six is for when you are planning to monitor individual cylinder temperatures
Injector
This is a selectable option so that the webstore doesn´t incorrectly calculate shipping cost
Pro adapter pinout information
Below are the pin functions of the S54B32 V2 adapter.
Race Connector 1 - 48pin
Pin number |
Function |
Information
|
A1 |
GPO 5 |
FUEL PUMP
|
A2 |
IGN 1 |
|
A3 |
IGN 2 |
|
A4 |
GPO 8 |
TACHO
|
B1 |
GPO 6 |
ENGINE FAN PWM
|
B2 |
IGN 3 |
|
B3 |
IGN 4 |
|
B4 |
GPO 1 |
AC CLUTCH RELAY
|
C1 |
GPO 7 |
|
C2 |
IGN 5 |
|
C3 |
IGN 6 |
|
C4 |
GPO 2 |
|
D1 |
WBO2 Heater |
|
D2 |
IGN 7 |
|
D3 |
IGN 8 |
|
D4 |
GPO 3 |
FUEL TANK VENT VALVE
|
E1 |
CAN High |
|
E2 |
CAN Low |
|
E3 |
GND Shield |
|
E4 |
GPO 4 |
DYNAMIC SWITCH LED
|
F1 |
Coolant temp input |
|
F2 |
Air temp input |
|
F3 |
WBO2 VREF |
|
F4 |
WBO2 VS |
|
G1 |
5V Supply output |
|
G2 |
TPS |
|
G3 |
WBO2 IP |
|
G4 |
WBO2 RCAL |
|
H1 |
Sensor GND |
|
H2 |
Trigger GND |
|
H3 |
Trigger |
CRANK SENSOR SIGNAL
|
H4 |
Home |
EXHAUST VANOS TRIGGER
|
J1 |
AIN 1 |
RADIATOR OUT TEMP SIGNAL
|
J2 |
AIN 2 |
DYNAMIC SWITCH
|
J3 |
AIN 3 |
TPS2
|
J4 |
AIN 4 |
OEM MAP
|
K1 |
INJ 1 |
|
K2 |
INJ 2 |
|
K3 |
DIN/VR 1 |
VANOS INTAKE CAM POSITION
|
K4 |
DIN/VR 2 |
BRAKE SWITCH
|
L1 |
INJ 8 |
IAC CLOSE
|
L2 |
INJ 7 |
IAC OPEN
|
L3 |
INJ 6 |
|
L4 |
Power GND |
|
M1 |
INJ 3 |
|
M2 |
INJ 4 |
|
M3 |
INJ 5 |
|
M4 |
12V |
|
Pro Connector 2 - 32pin Grey
Pin number |
Function |
Information
|
A1 |
EGT 1+ |
|
A2 |
EGT 2+ |
|
A3 |
EGT 3+ |
|
A4 |
EGT 4+ |
|
B1 |
EGT 1- |
|
B2 |
EGT 2- |
|
B3 |
EGT 3- |
|
B4 |
EGT 4- |
|
C1 |
EGT 5+ |
|
C2 |
EGT 6+ |
|
C3 |
EGT 7+ |
|
C4 |
EGT 8+ |
|
D1 |
EGT 5- |
|
D2 |
EGT 6- |
|
D3 |
EGT 7- |
|
D4 |
EGT 8- |
|
E1 |
EGT 9+ |
|
E2 |
EGT 10+ |
|
E3 |
EGT 11+ |
|
E4 |
EGT 12+ |
|
F1 |
EGT 9- |
|
F2 |
EGT 10- |
|
F3 |
EGT 11- |
|
F4 |
EGT 12- |
|
G1 |
|
|
G2 |
|
|
G3 |
|
|
G4 |
|
|
H1 |
Power GND |
|
H2 |
Power GND |
|
H3 |
Power GND |
|
H4 |
|
|
PRO Connector 3 - 48pin Brown
Pin number |
Function |
Information
|
A1 |
DIN/VR 4 |
VSS
|
A2 |
DIN/VR 5 |
|
A3 |
DIN 6 |
OIL LEVEL
|
A4 |
DIN 7 |
|
B1 |
WBO2 2 RCAL |
|
B2 |
WBO2 2 IP |
|
B3 |
WBO2 2 VS |
|
B4 |
WBO2 2 COM |
|
C1 |
WBO2 2 SHIELD |
|
C2 |
+5V SENSOR SUPPLY 2 |
|
C3 |
AIN 5 |
PPS1
|
C4 |
GPO 19 |
|
D1 |
AIN 6 |
PPS2
|
D2 |
AIN 7 |
STEERING WHEEL SWITCHES
|
D3 |
AIN 8 |
|
D4 |
GPO 20 |
|
E1 |
GPO 10 WBO HEATER |
|
E2 |
AIN 9 |
|
E3 |
AIN 10 |
|
E4 |
GPO 21 |
|
F1 |
INJ 15 |
|
F2 |
AIN 11 |
|
F3 |
AIN 12 |
|
F4 |
GPO 22 |
|
G1 |
INJ 14 |
|
G2 |
IGN 11 |
|
G3 |
IGN 9 |
|
G4 |
GPO 15 |
INT VANOS ADVANCE
|
H1 |
INJ 13 |
|
H2 |
IGN 12 |
|
H3 |
IGN 10 |
|
H4 |
GPO 16 |
INTAKE VANOS RETARD
|
J1 |
INJ 16 |
|
J2 |
ANA GND |
|
J3 |
ANA GND |
|
J4 |
GPO 17 |
EXHAUST VANOS ADVANCE
|
K1 |
INJ 10 |
|
K2 |
INJ 9 |
|
K3 |
KEY IN 12V |
KL15
|
K4 |
GPO 18 |
EXHAUST VANOS RETARD
|
L1 |
INJ 11 |
|
L2 |
GPO 12 |
DBW+
|
L3 |
GPO 11 |
DBW-
|
L4 |
Power GND |
|
M1 |
INJ 12 |
|
M2 |
GPO 13 |
|
M3 |
GPO 14 |
|
M4 |
12V ECU IN |
|
Pro Connector 4 - 32pin Black
Pin number |
Function |
Information
|
A1 |
CAN 2 H |
|
A2 |
CAN 2 L |
|
A3 |
0-5V OUT 1 |
|
A4 |
0-5V OUT 2 |
|
B1 |
AIN 18 |
|
B2 |
AIN 17 |
|
B3 |
AIN 16 |
|
B4 |
AIN 15 |
|
C1 |
AIN 14 |
BMW S54 PNPECU Wiki Pro V2
|
C2 |
AIN 13 |
|
C3 |
AIN 19 |
|
C4 |
AIN 20 |
|
D1 |
AIN 21 |
AIR TEMP SPARE
|
D2 |
AIN 22 |
EXHAUST GAS OEM
|
D3 |
DIN 8 |
CLUTCH SWITCH
|
D4 |
DIN 8 |
|
E1 |
DIN 10 |
|
E2 |
DIN 11 |
|
E3 |
+5V SENSOR SUPPLY 3 |
|
E4 |
5-10V SENSOR SUPPLY |
|
F1 |
GPO 23-30 FLYBACK |
|
F2 |
KNOCK 1 |
|
F3 |
KNOCK 2 |
|
F4 |
KNOCK GND |
|
G1 |
GPO 23 |
|
G2 |
GPO 24 |
|
G3 |
GPO 25 |
MAIN RELAY 85
|
G4 |
GPO 26 |
|
H1 |
GPO 27 |
|
H2 |
GPO 28 |
|
H3 |
GPO 29 |
|
H4 |
GPO 30 |
|
AIR TEMP CONNECTOR EXTENSION - 2pin
Pin number |
Function |
Information
|
1 |
AIR TEMP SIGNAL |
|
2 |
ANALOG GROUND |
|
Last change 23.04.2024, 20:35:18