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Last change 25.04.2024, 18:19:17

BMW N54 Pro PNPECU Wiki V3

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Contents

  1. PNPECU MaxxECU Pro N54 solution
  2. Adapter extra connector information
  3. Transmission compatibility
  4. Specific fundamental requirements of the kit
  5. N54 OEM Sensors Usage
  6. N54 OEM Actuator Usage
  7. CAN BUS Compatibility
  8. Options at ordering
  9. Pro adapter pinout information

PNPECU MaxxECU Pro N54 solution



This page refers to version 3 PNPECU N54 solution only. Make sure to check the adapter tag for your version.

5/11/2022 - Version 3 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


CAN BUS Compatibility



5/11/2022 -
• E46 - compatible with$h2_header as $i => $txt 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
•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

Input and Outputs

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.$h2_header as $i => $txt

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


Pro adapter pinout information



Below is the pin functions of the N54 V3 adapter. The ignition option dictates if the Molex connector is in the adapter or not.


PRO 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 connector
B2 IGN 3
B3 IGN 4
B4 GPO 1 FAN PWM output
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
D3 IGN 8 Spare 0/5v output
D4 GPO 3 VANOS Exhaust output
E1 CAN High PT-Bus
E2 CAN Low PT-Bus
E3 GND Shield
E4 GPO 4 Electric thermostat output
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 Connector
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
L2 INJ 7 Wastegate front bank
L3 INJ 6
L4 Power GND
M1 INJ 3
M2 INJ 4
M3 INJ 5
M4 12V




Pro Connector 2 - 32pin
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 Ethanol Sensor 8/3 Connector
A3 DIN 6
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 BOOST
C4 GPO 19 EXHAUST FLAP
D1 AIN 6
D2 AIN 7 LOW FP SENSOR
D3 AIN 8 TPS2
D4 GPO 20
E1 GPO 10 WBO HEATER
E2 AIN 9 RAD OUT
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 SPARE OUTPUT 14/11 CONNECTOR
H1 INJ 13
H2 IGN 12
H3 IGN 10
H4 GPO 16 SPARE OUTPUT 14/12 CONNECTOR
J1 INJ 16
J2 ANA GND
J3 ANA GND
J4 GPO 17
K1 INJ 10
K2 INJ 9
K3 KEY IN 12V KL15
K4 GPO 18
L1 INJ 11
L2 GPO 12 DBW+
L3 GPO 11 DBW-
L4 Power GND
M1 INJ 12
M2 GPO 13 SPARE OUTPUT 14/10 CONNECTOR
M3 GPO 14 SPARE OUTPUT 8/6 CONNECTOR
M4 12V ECU IN


Pro Connector 4 - 32pin Grey
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
C2 AIN 13
C3 AIN 19
C4 AIN 20
D1 AIN 21
D2 AIN 22
D3 DIN 8
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




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


Injector loom connector - 14pin with 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 Low side output
14 IGN 8 Low side 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


Ignition box connector - 20pin
Pin number Function Information
1 IGN 1 FROM ECU
2 IGN 2 FROM ECU
3 IGN 3 FROM ECU
4 IGN 4 FROM ECU
5 IGN 5 FROM ECU
6 IGN 6 FROM ECU
7 IGN 7 FROM ECU
8 IGN 8 FROM ECU
9 POWER GROUND
10 12+
11 IGNITION COIL 1
12 IGNITION COIL 2
13 IGNITION COIL 3
14 IGNITION COIL 4
15 IGNITION COIL 5
16 IGNITION COIL 6
17 SPARE lOW SIDE OUTPUT IGN7 SIGNAL FROM ECU CONTROLLED
18 SPARE lOW SIDE OUTPUT IGN8 SIGNAL FROM ECU CONTROLLED
18 POWER GROUND
20 POWER GROUND



Last change 08.04.2024, 08:52:46




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