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Last change 25.04.2024, 18:19:17

BMW N54 Race PNPECU Wiki V3

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Contents

  1. PNPECU MaxxECU 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. Race adapter pinout information

PNPECU MaxxECU 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 - 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
•IGBT Output box - Stock coils can be retained

ECU Model
• Race - All EGT inputs are spare, 2 Analog inputs are spare, 1 Digital input is spare, 3 Low side outputs are 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 V3 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
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
E2 CAN Low
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
J2 AIN 2 - Spare Temp input
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 From X2-1




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
F1 AIN 7 - LP Fuel Pressure input
F2 AIN 8 - TPS2
F3 DIN/VR 4 - VSS
F4 DIN/VR 5 - Spare input
G1 GPO 15 - Spare output
G2 GPO 16 - Spare output
G3 AIN 5 - BOOST
G4 Power GND
H1 GPO 14 - Spare output
H2 GPO 11 - DBW-
H3 GPO 13 - Spare output
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


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




PNPECU Injector loom pinout without ignition box- 14pin
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 SPARE 12V
9 GPO 6 SPARE LOW SIDE OUTPUT
10 GPO 13 SPARE LOW SIDE OUTPUT
11 GPO 15 SPARE HIGH SIDE OUTPUT
12 GPO 16 SPARE HIGH SIDE OUTPUT
13 IGN 7 SPARE 0/5v OUTPUT
14 IGN 8 SPARE 0/5v OUTPUT



Last change 08.04.2024, 08:52:46




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