BMW N54 Race PNPECU Wiki V5
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PNPECU MaxxECU N54 solution
This page refers to version 5 PNPECU N54 solution only. Make sure to check the adapter tag for your version.
25/10/2023 - Version 5 is latest.
PNPECU has developed the N54 solution to satisfy customer requests to allow the N54 engine to be operated without GDI and with PFI instead. This allows most tuners to tune the engine without having to have any knowledge of GDI systems that at this current time are not general knowledge in the standalone tuner segment of the market as well as the freedom to tune it without OEM ECU tuner limits and restrictions.
The water pump, oil level sensor and alternator are additional features thanks to MaxxECU providing the hardware and software to communicate with these external hardware devices.
The EKPM3 is also controlled by the MaxxECU
Adapter extra connector information
• 8 pin Auxiliary connector part numbers
• Connector - https://www.te.com/usa-en/product-284869-1.html
• Terminals - https://www.te.com/usa-en/product-5-963716-1.html
• 14 Pin Injector loom connector part numbers
• Connector - https://www.te.com/usa-en/product-936126-1.html
• Terminals - https://www.te.com/usa-en/product-5-963716-1.html
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.
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!
Specific fundamental requirements of the kit
• GDI Injectors removed, and plugs/blanks fitted - not supplied and not available from PNPECU
• Port fuel injection setup installed - fuel rail, regulator is not strictly required but common to fit, adapter plate or new intake manifold suitable for injector fitting - not supplied and not available from PNPECU
• Port fuel injectors installed - With the Race and Pro ECU these can be low impedance or high impedance, with Sport they will have to be high impedance - not supplied, some options available from PNPECU
N54 OEM Sensors Usage
• Boost and Map sensor are not required but have been wired for monitoring, the pressure port on the ECU is used for all fueling and ignition calculations and needs to be connected post throttle body on the intake manifold, this simplifies the control strategies required greatly and makes it easier for tuners to get started with the tuning process. If the user is going above 3bar boost, then an external map sensor is required to be fitted.
• Post cat sensors are not used
• GDI rail pressure - not used
• Knock sensors - used as OEM
• Air temperature - It´s a part of the boost sensor and so should not be removed.
• Coolant temperature - used as OEM
• Pedal position channels 1 and 2 - used as OEM
• Throttle body position channels 1 and 2 - used as OEM
• Lambda sensor front bank - used as OEM
• Lambda sensor rear bank - not available on Race except using a WBO module, available on Pro
• Low pressure fuel system pressure - used as OEM
• Clutch switch - used as OEM
• Vanos triggers and camsync - used as OEM
• Vehicle Speed Sensor Rear Right - used for vehicle speed
• Oil level and temperature sensor
N54 OEM Actuator Usage
• Ignition coil wiring - see options below for more details
• Tachometer signal
• Electric Fan PWM control
• Vanos Intake and Exhaust
• Wideband sensor heaters
• Electric thermostat
• Wastegate solenoids
• Electronic throttle
• Fuel pump control via canbus
• Alternator via BSD
• Waterpump via BSD
• Exhaust flap - Pro only
CAN BUS Compatibility
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 N54 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
•Stock coils - Stock coils can be retained with stock wiring
Some V5 adapters contain V3 IGBT modules which have physical switches that allow swapping between smart and stock coils with just a flick of a switch.
PNPECU V3 IGBT Settings
ECU Model
• Race - All EGT inputs are spare, 2 Analog inputs are spare, 1 Digital input is spare, 1 Low side output is spare, 2 High side outputs are spare, 2 Logic level outputs are available
• Pro - Ell EGT inputs are spare, 13 Analog inputs are spare, 6 digital inputs are spare, 7 Low side outputs are spare, 7 High side outputs are spare, 9 Injector outputs are spare (can be used as low side outputs), CAN 2 is spare, 3 5V output supplies are spare, 1 5-10V supply is 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
Injector harness
This is a selectable option so that the webstore doesn´t incorrectly calculate shipping cost
• EV1 - Junior power timer connectors , also known as Bosch 2 pin connectors
• EV6 - for use with EV6 injector connectors
• EV14 - for use with EV14 injector connectors
Race adapter pinout information
Below is the pin functions of the N54 V5 adapter. The ignition option dictates if the Molex connector is in the adapter or not.
Race Connector 1 - 48pin
Pin number |
Function |
Information |
A1 |
GPO 5 - BSD |
|
A2 |
IGN 1 |
|
A3 |
IGN 2 |
|
A4 |
GPO 8 / Tacho output |
|
B1 |
GPO 6 |
Spare output 14/9 |
B2 |
IGN 3 |
|
B3 |
IGN 4 |
|
B4 |
GPO 1 |
ELECTRIC FAN PWM |
C1 |
GPO 7 - BSD |
|
C2 |
IGN 5 |
|
C3 |
IGN 6 |
|
C4 |
GPO 2 |
VANOS INTAKE OUTPUT |
D1 |
WBO2 Heater Front output |
|
D2 |
IGN 7 |
Spare 0/5v output 14/13 |
D3 |
IGN 8 |
Spare 0/5v output 14/14 |
D4 |
GPO 3 |
VANOS EXHAUST OUTPUT |
E1 |
CAN High |
|
E2 |
CAN Low |
|
E3 |
GND Shield |
|
E4 |
GPO 4 |
ELECTRIC THERMOSTAT CONTROL |
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 |
|
H4 |
Home |
|
J1 |
AIN 1 |
Spare Temp input 8/4 |
J2 |
AIN 2 |
CLUTCH SWITCH |
J3 |
AIN 3 |
PPS1 input |
J4 |
AIN 4 |
PPS2 input |
K1 |
INJ 1 |
|
K2 |
INJ 2 |
|
K3 |
DIN/VR 1 |
EXHAUST CAM INPUT |
K4 |
DIN/VR 2 |
OIL SWITCH |
L1 |
INJ 8 |
WASTEGATE REAR BANK CONTROL |
L2 |
INJ 7 |
WASTEGATE REAR BANK CONTROL |
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 |
Spare input 8/5 |
F1 |
AIN 7 |
LOW PRESSURE FUEL PRESSURE INPUT |
F2 |
AIN 8 |
TPS2 |
F3 |
DIN/VR 4 |
VSS |
F4 |
DIN/VR 5 |
Spare input 8/3 |
G1 |
GPO 15 |
Spare output 14/11 |
G2 |
GPO 16 |
Spare output 14/12 |
G3 |
AIN 5 |
BOOST SIGNAL INPUT |
G4 |
Power GND |
|
H1 |
GPO 14 |
Spare output 8/6 |
H2 |
GPO 11 - DBW- |
|
H3 |
GPO 13 |
Spare output 14/10 |
H4 |
GPO 12 - DBW+ |
|
Injector loom connector - 14pin without ignition Box
Pin number |
Function |
Information |
1 |
INJ 1 |
|
2 |
INJ 2 |
|
3 |
INJ 3 |
|
4 |
INJ 4 |
|
5 |
INJ 5 |
|
6 |
INJ 6 |
|
7 |
12V SUPPLY |
|
8 |
12V SUPPLY |
|
9 |
GPO 6 |
|
10 |
GPO 13 |
|
11 |
GPO 15 |
|
12 |
GPO 16 |
|
13 |
IGN 7 |
0/5V Output |
14 |
IGN 8 |
0/5V Output |
Auxiliary loom connector - 8pin
Pin number |
Function |
Information |
1 |
12V SUPPLY |
|
2 |
Power GND |
|
3 |
DIN/VR 5 |
|
4 |
AIN 1 |
|
5 |
AIN 6 |
|
6 |
GPO 14 |
|
7 |
5v SUPPLY |
|
8 |
Analog GND |
|
|
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 |
USED |
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 |
X6002-13 |
IGNITION 1 |
|
X6002-14 |
IGNITION 2 |
|
X6002-15 |
IGNITION 3 |
|
X6002-16 |
IGNITION 4 |
|
X6002-17 |
IGNITION 5 |
|
X6002-18 |
IGNITION 6 |
|
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 - |
|
X6003-10 |
LP FP SIGNAL |
|
X6003-12 |
CAN High |
FROM ECU |
X6003-13 |
CAN High |
Spare CANBUS connection |
X6003-14 |
CAM SYNC |
INTAKE CAM |
X6003-16 |
EXHAUST VANOS SIGNAL |
|
X6003-18 |
RADIATOR OUTLET TEMP SIGNAL |
|
X6003-19 |
WBO2 PIN 1 |
|
X6003-20 |
WBO2 PIN 2 |
|
X6003-21 |
WBO2 PIN 3 |
|
X6003-22 |
WBO2 PIN 5 |
|
X6003-23 |
WBO2 PIN 6 |
|
X6003-24 |
EOP SWITCH |
|
X6003-25 |
CAN Low |
FROM ECU |
X6003-26 |
CAN Low |
Spare CANBUS connection |
X6003-27 |
BOOST Signal |
|
X6003-28 |
KNOCK 1 |
CYLINDERS 1-3 |
X6003-29 |
KNOCK 2 |
CYLINDERS 4-6 |
X6003-32 |
WBO2 PIN 1 |
|
X6003-33 |
WBO2 PIN 2 |
|
X6003-34 |
WBO2 PIN 3 |
|
X6003-35 |
WBO2 PIN 5 |
|
X6003-36 |
WBO2 PIN 6 |
|
X6003-40 |
VSS |
|
X6003-41 |
BRAKE SWITCH |
Available but not used |
X6003-42 |
CLUTCH SWITCH |
|
X6003-43 |
KNOCK GROUND |
|
X6003-45 |
BSD GPO |
|
X6003-46 |
BSD DIN |
|
X6003-49 |
POST THROTTLE PRESSURE |
|
X6004-1 |
INTAKE VANOS SOLENOID |
|
X6004-6 |
EXHAUST VANOS SOLENOID |
|
X6004-9 |
ELECTRIC THERMOSTAT |
|
X6004-10 |
ELECTRIC FAN PWM |
|
X6004-11 |
DBW+ |
|
X6004-13 |
TACHO |
|
X6004-14 |
WG FRONT |
|
X6004-15 |
WG REAR |
|
X6004-21 |
DBW- |
|
X6004-23 |
EXHAUST FLAP |
Available but not used |
X6004-24 |
EVAP |
Available but not used |
X6004-27 |
5V SUPPLY |
FROM ECU |
X6004-28 |
5V SUPPLY |
TO AUX 8/7 |
X6004-29 |
5V SUPPLY |
Spare 5v |
X6004-30 |
5V SUPPLY |
Spare 5v |
X6004-35 |
E BOX FAN |
Available but not used |
X6004-37 |
ANALOG GROUND |
ECU E3 |
X6004-38 |
ANALOG GROUND |
ECU H1 |
X6004-39 |
ANALOG GROUND |
TO AUX 8/8 |
X6004-40 |
ANALOG GROUND |
TO AUX 18/18 |
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 |
Last change 08.04.2024, 08:52:47