BMW S54 PNPECU Wiki V5

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PNPECU MaxxECU S54 MSS54 solution

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This page refers to version 5 PNPECU S54 MSS54 solution only. Make sure to check the adapter tag for your version.

25/7/2023 - Version 5 is latest.

PNPECU has developed the S54 solution to satisfy customer requests to allow the S54 engine to be operated fully.

Adapter extra connector information

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See bottom of this page for the pinouts of these auxiliary connectors

• 18 pin Auxiliary connector part numbers
  • Connector - https://www.te.com/usa-en/product-1-962692-2.html
  • Terminals - https://www.te.com/usa-en/product-5-963716-1.html

• X6000-1 and X6000-5 terminals for spare functions (12V, GROUND, CANBUS HUB)

  • X6001 IS THE BLACK CONNECTOR

  • X6005 IS THE WHITE CONNECTOR

  • Terminals - https://www.te.com/usa-en/product-964284-2.html

Transmission compatibility

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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.

For direct PNP communications with a stock BMW 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 transmissions to the emulation compatibility list.

100% compatible with all manual gearboxes!

S54B32 OEM Sensors Usage

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• MAF is not used
• Pre cat lambda sensors are not used
• Post cat sensors are not used
• Air temp sensor is not used - new fast sensor is supplied
• Knock sensors - knock for cylinders 3/4 are not used as only two inputs exist in the MaxxECU
• CAT Exhaust temp sensor

• 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

S54B32 OEM Actuator Usage

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• 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

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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 S54 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

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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
• Stock coils - Adapter housing provides ignition drivers.

ECU Model
• Race - All EGT inputs are spare, 0 Analog inputs are spare, 0 Digital input is spare, 4 Low side outputs are spare, 0 High side outputs are spare, 0 Hbridge outputs are spare


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
• 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

Race adapter pinout information

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Below is the pin functions of the S54 V5 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	Spare output 18/7
C1	GPO 7	Spare output 18/10
C2	IGN 5
C3	IGN 6
C4	GPO 2	Spare output 18/8
D1	WBO2 Heater
D2	IGN 7	AC COMPRESSOR RELAY
D3	IGN 8	FUEL TANK VENT VALVE
D4	GPO 3	Spare output 18/9
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

Race Connector 2 - 32pin

Pin number	Function	Information
A1	EGT 5+
A2	EGT 6+
A3	EGT 7+
A4	EGT 8+
B1	EGT 5-
B2	EGT 6-
B3	EGT 7-
B4	EGT 8-
C1	EGT 1+
C2	EGT 2+
C3	EGT 3+
C4	EGT 4+
D1	EGT 1-
D2	EGT 2-
D3	EGT 3-
D4	EGT 4-
E1	Knock GND
E2	Knock 1
E3	Knock 2
E4	AIN 6	PPS2
F1	AIN 7	STEERING WHEEL SWITCHES
F2	AIN 8	Spare input
F3	DIN/VR 4	VSS
F4	DIN/VR 5	OIL LEVEL
G1	GPO 15	VANOS INTAKE ADVANCE SOLENOID
G2	GPO 16	VANOS INTAKE RETARD SOLENOID
G3	AIN 5	PPS1
G4	Power GND
H1	GPO 14	VANOS EXHAUST RETARD SOLENOID
H2	GPO 11	DBW MOTOR-
H3	GPO 13	VANOS EXHAUST ADVANCE SOLENOID
H4	GPO 12	DBW MOTOR+

Auxiliary connector - 18pin

Pin number	Function	Information
1	12V SUPPLY
2	5V SUPPLY
3	ANALOG GROUND
4	POWER GROUND
5	CAN HIGH
6	CAN LOW
7	GPO 1
8	GPO 2
9	GPO 3
10	GPO 7
11	5V SUPPLY
12	5V SUPPLY
13
14
15
16
17
18

Adapter ECU side connector X6000

Pin number	Function	Information
X6001-1	SWITCHED 12V	USED
X6001-2	SWITCHED 12V	USED
X6001-3	SWITCHED 12V	USED
X6001-4	SWITCHED 12V	SPARE FROM MAIN RELAY
X6001-5	SWITCHED 12V	SPARE FROM MAIN RELAY
X6001-6	POWER GROUND	USED
X6001-7	POWER GROUND	USED
X6001-8	POWER GROUND	USED
X6001-9	POWER GROUND	SPARE
X6002-1	INJECTOR 1
X6002-2	INJECTOR 2
X6002-3	INJECTOR 3
X6002-4	INJECTOR 4
X6002-5	INJECTOR 5
X6002-6	INJECTOR 6
X6002-13	IGNITION 1
X6002-14	IGNITION 2
X6002-15	IGNITION 3
X6002-16	IGNITION 4
X6002-17	IGNITION 5
X6002-18	IGNITION 6
X6002-19	IGNITION 7	AC COMPRESSOR RELAY
X6002-19	IGNITION 8	FUEL TANK VENT VALVE
X6003-1	COOLANT TEMP SENSOR
X6003-2	AIR TEMP SENSOR
X6003-3	TPS1
X6003-4	TPS2
X6003-5	PPS1
X6003-6	PPS2
X6003-7	CRANK +
X6003-8	CRANK -
X6003-12	CAN High	FROM ECU
X6003-13	CAN High	Spare CANBUS connection
X6003-14	CAM SYNC	INTAKE CAM
X6003-16	EXHAUST VANOS
X6003-18	RADIATOR OUTLET TEMP
X6003-25	CAN Low	FROM ECU
X6003-26	CAN Low	Spare CANBUS connection
X6003-28	KNOCK 1	CYLINDERS 1-3
X6003-29	KNOCK 2	CYLINDERS 4-6
X6003-40	VSS
X6003-41	BRAKE SWITCH
X6003-43	KNOCK GROUND
X6003-44	STEERING WHEEL BUTTONS
X6003-49	MAP SENSOR CSL
X6004-1	INTAKE VANOS SOLENOID ADVANCE
X6004-2	INTAKE VANOS SOLENOID RETARD
X6004-5	EXHAUST VANOS SOLENOID ADVANCE
X6004-6	EXHAUST VANOS SOLENOID RETARD
X6004-10	ELECTRIC FAN PWM
X6004-11	DBW+
X6004-12	IAC OPEN
X6004-13	TACHO
X6004-21	DBW-
X6004-22	IAC CLOSE
X6004-25	FUEL PUMP RELAY
X6004-27	5V SUPPLY	FROM ECU
X6004-28	5V SUPPLY	TO AUX 18/2
X6004-29	5V SUPPLY	TO AUX 18/16
X6004-30	5V SUPPLY	TO AUX 18/17
X6004-36	DYNAMIC SWITCH LED
X6004-37	ANALOG GROUND	ECU E3
X6004-38	ANALOG GROUND	ECU H1
X6004-39	ANALOG GROUND	TO AUX 18/3
X6004-40	ANALOG GROUND
X6005-1	12V SWITCHED	FROM MAIN RELAY
X6005-2	12V SWITCHED	FROM MAIN RELAY
X6005-3	N/A
X6003-4	PWR GND
X6003-5	CAN HIGH	Spare CANBUS connection
X6003-6	CAN HIGH	Spare CANBUS connection
X6003-7	PWR GND
X6003-8	CAN LOW	Spare CANBUS connection
X6003-9	CAN LOW	Spare CANBUS connection

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Last change 08.04.2024, 08:52:52