BMW BCS LPC8 M54 MS43 PNP WIKI V4

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PNPECU BCS LPC8 M54 MS43 solution

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This page refers to version 4 PNPECU M54 solution only. Make sure to check the adapter tag for your version.

16/12/2022 - Version 4 is latest.

PNPECU has developed the M54 solution to satisfy customer requests to allow the M54 engine to be fully controlled

Adapter extra connector information

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• 14 Pin Auxiliary 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

M54 OEM Sensors Usage

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• Pre CAT Lambda sensors are not used

• MAF is monitored and can be used
• Coolant temperature - used as OEM
• Air temp sensor - used as OEM
• TPS sensors - used as OEM
• Pedal position sensors - used as OEM
• Camshaft sensors - used as OEM
• Engine oil temp - used as OEM
• Clutch pedal switch - used as OEM
• Radiator output temp - used as OEM
• Brake pedal - used as OEM
• Vehicle Speed Sensor Rear Right - used for vehicle speed
• AC signals from vehicle - used as OEM
• Knock sensors - used as OEM
• Post CAT Lambda sensors are monitored and can be used

M54 OEM Actuator Usage

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• Ignition coil wiring - Ignition driver allows jumper change to logic signals
• Tachometer signal
• Fuel pump relay
• Idle control valve
• Vanos control both camshafts
• Electric thermostat
• Post CAT Lambda heaters
• Drive by wire
• AC Compressor relay
• DISA Valve
• Main relay
• Secondary air valve
• Secondary air pump relay

CAN BUS Compatibility

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The E46/E39/E38 the M54 originally came in communicated with the rest of the vehicle via CAN BUS. BCS LPC8 supports this CANBUS

16/12/2022 -
• E36/7 - compatible with BMWs of similar vintage
• E46 - compatible with BMWs of similar vintage
• E39 - compatible with BMWs of similar vintage
• E38 - compatible with BMWs of similar vintage
• E85 - compatible with BMWs of similar vintage


Additionally custom CANBUS is possible on the powertrain bus or the spare secondary CANBUS

Options at ordering

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Not everyone is going to need or want the same thing with their ECU conversion.

Ignition outputs
• Stock coils - jumpers in the ignition driver set to IGBT
• Smart coils - jumper change in the ignition driver to TTL and customer will install their choice of ignition coils using stock BMW coil wiring
Ignition box information

ECU Model
• LPC8 GEN2 DUAL WIDEBAND: 5 Analog inputs are spare, 1 Digital input is spare, 2 Low side outputs are spare, CAN2 is spare

Injectors
This is a selectable option so that the webstore doesn´t incorrectly calculate shipping cost when customer wants bigger injectors

PNPECU BCS LPC8 GEN2 Adapter pinout

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LPC8 Connector A - 24PIN

Pin number	Function	Information
1	5V SUPPLY
2	ANALOG 0	PPS2 SIGNAL
3	ANALOG 1	PPS1 SIGNAL
4	POWER GROUND
5	ANALOG 4	BANK 1 POST CAT SIGNAL
6	ANALOG 5	BANK 2 POST CAT SIGNAL
7	CAN1 H	OEM PT-BUS
8	CAN1 L	OEM PT-BUS
9	OUTPUT 1	TACHO
10	OUTPUT 2	Spare low side output
11	POWER GROUND
12	POWER GROUND
13	DIGITAL 1	EXHAUST CAM SIGNAL
14	ANALOG 2	ENGINE COOLANT TEMP
15	ANALOG 3	AIR TEMP SIGNAL
16	ANALOG GROUND	CRANK GROUND
17	CAMSYNC	INTAKE CAMSHAFT SIGNAL
18	CRANK SYNC	CRANK SHAFT SIGNAL
19	DIGITAL 5	Spare input
20	ANALOG GROUND
21	OUTPUT 4	Spare low side output
22	OUTPUT 3	IDLE VALVE OPEN
23	DIGITAL 2	BRAKE PEDAL
24	12V

LPC8 Connector B - 12PIN

Pin number	Function	Information
1	OUTPUT 5	IDLE VALVE CLOSE
2	OUTPUT 6	ELECTRIC THERMOSTAT
3	IGNITION 5
4	IGNITION 6
5	IGNITION 7
6	IGNITION 8
7	OUTPUT 7	BANK 1 POST CAT HEATER
8	OUTPUT 8	BANK 2 POST CAT HEATER
9	IGNITION 1
10	IGNITION 2
11	IGNITION 3
12	IGNITION 4

LPC8 Connector C - 16PIN

Pin number	Function	Information
1	KNOCK 1
2	KNOCK 2
3	LSU1 4.9 PIN 6
4	LSU1 4.9 PIN 2
5	ANALOG 10	RADIATOR OUT TEMP SIGNAL
6	ANALOG 8	TPS1 SIGNAL
7	ANALOG 12	MAF SIGNAL
8	ANALOG GROUND
9	DIGITAL 4	VSS
10	LSU 4.9 PIN 1
11	LSU 4.9 PIN 5
12	DIGITAL 3	CLUTCH PEDAL SWITCH
13	ANALOG 11	ENGINE OIL TEMP
14	ANALOG 9	TPS2
15	ANALOG 18	Spare input
16	5V SUPPLY

LPC8 Connector D - 14PIN

Pin number	Function	Information
1	H-BRIDGE+	DRIVE BY WIRE+
2	INJECTOR 1
3	INJECTOR 2
4	INJECTOR 3
5	INJECTOR 4
6	LSU1 4.9 PIN 3
7	POWER GROUND
8	H-BRIDGE-	DRIVE BY WIRE-
9	INJECTOR 5
10	INJECTOR 6
11	INJECTOR 7
12	INJECTOR 8
13	H-BRIDGE 12V IN
14	POWER GROUND

LPC8 Connector E - 10PIN

Pin number	Function	Information
1	LSU2 4.9 PIN 2
2	LSU2 4.9 PIN 6
3	LSU2 4.9 PIN 1
4	LSU2 4.9 PIN 5
5	LSU2 4.9 PIN 3
6	ANALOG 19	Spare input
7	ANALOG 20	Spare input
8	ANALOG 21	Spare input
9	ANALOG 22	Spare input
10	ANALOG 23	STEERING WHEEL CRUISE CONTROL BUTTONS

LPC8 Connector F - 8PIN

Pin number	Function	Information
1	OUTPUT 9	FAN PWM
2	OUTPUT 10	FUEL PUMP RELAY
3	IGNITION 12	KL15
4	MAIN RELAY CTRL
5	OUTPUT 11	SECONDARY AIR VALVE
6	OUTPUT 12	SECONDARY AIR PUMP VALVE
7	CAN2 H
8	CAN2 L

AUXILIARY CONNECTOR - 14PIN

Pin number	Function	Information
1	12V
2	5V
3	ANALOG GROUND
4	POWER GROUND
5	CAN 2 HIGH
6	CAN 2 LOW
7	OUTPUT 2	5A LOW SIDE OUTPUT
8	OUTPUT 4	5A LOW SIDE OUTPUT
9	DIGITAL 5	FREQUENCY OR SWITCH INPUT
10	ANALOG 18	51kΩ 5V pull-up
11	ANALOG 19	51kΩ 5V pull-up
12	ANALOG 20	51kΩ 5V pull-up
13	ANALOG 21	51kΩ 5V pull-up
14	ANALOG 22	51kΩ 5V pull-up

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Last change 08.04.2024, 08:52:31