BMW M52 MS42 V4.95

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PNPECU EMU Black M52 MS41 solution

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This page refers to version 4.95 PNPECU M52 VANOS solution only. Make sure to check the adapter tag for your version.

30/7/2024 - Version 4.95 is latest.

PNPECU has developed the M52 solution to satisfy customer requests to allow the M52tu engine to be fully controlled

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-1355348-1.html
  • Cover - https://www.te.com/usa-en/product-1-1355350-1.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)
  • Terminals - https://www.te.com/usa-en/product-964284-2.html

M52 OEM Sensors Usage

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• OEM Lambda sensors are not used
• MAF sensor is not used
• M52 cam sensor cannot be used. Replace with M54 cam sensor



• Coolant temperature - used as OEM
• TPS sensor - used as OEM
• Vehicle Speed Sensor Rear Right - used for vehicle speed
• Knock sensors - used as OEM

M52 OEM Actuator Usage

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• Secondary air pump - not used
• Secondary air valve - not used
• Exhaust flap - not used


• Ignition coil wiring - used as OEM
• Tachometer signal - used as OEM
• Fuel pump relay - used as OEM
• Idle control valve - used as OEM
• Vanos solenoid - used as OEM
• AC Compressor relay - used as OEM
• Econometer output

CAN BUS Compatibility

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The E36 the M52 originally came in did not communicate with the rest of the vehicle via CAN BUS.

Options at ordering

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

ECU Model
• Black - 4 Analog inputs are spare, 2 Digital inputs are spare, 1 Low side output is spare.



Injector
This is a selectable option so that the webstore doesn´t incorrectly calculate shipping cost

EMU Black adapter pinout information

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Below is the pin functions of the M52 V4.95 adapter.

EMU Black Connector 1 - 39pin - GREY

Pin number	Function	Information
1	IGN 5
2	EGT 1+	Not wired
3	KNOCK 1
4	ANALOG 2	Spare input Aux 18/13
5	COOLANT TEMP SENSOR
6	WBO2 VS
7	CAMSYNC 2	Spare input Aux 18/11
8	PRIMARY TRIGGER
9	FLEX FUEL	Spare input Aux 18/19
10	SWITCH 1	AC PRESSURE SWITCH
11	RS232TXD
12	CAN H	Spare input Aux 18/5
13	BATTERY 12V
14	IGN 4
15	EGT2+	Now wired
16	KNOCK 2
17	ANALOG 3	Spare input Aux 18/14
18	TPS-IN
19	WBO IP
20	VSS
21	CAMSYNC 1
22	WBO RCAL
23	SWITCH 2	AC ENABLE SWITCH
24	RS232RXD
25	CAN LOW	Spare input Aux 18/6
26	5V SUPPLY
27	PWR GND
28	ECU GND
29	Sensor GND
30	ANALOG 4	Spare input Aux 18/15
31	ANALOG 1	Spare input Aux 18/12
32	AIR TEMP SENSOR
33	WBO2 VGND
34	5V SUPPLY
35	ANALOG 5	Spare input Aux 18/16
36	SWITCH 3	Spare input Aux 18/10
37	ANALOG 6	Spare input Aux 18/17
38	SENSOR GND
39	SENSOR GND

EMU Black Connector 2 - 24pin - BLACK

Pin number	Function	Information
1	IGN 6
2	H-BRIDGE 1+	Spare output Aux 18/7
3	H-BRIDGE 2+	IAC OPEN
4	AUX 6	AC COMPRESSOR RELAY
5	AUX 3	VANOS SOLENOID
6	INJ 4
7	INJ 1
8	IGN 1
9	IGN 3
10	H-BRIDGE 1-	Spare output Aux 18/8
11	H-BRIDGE 2-	IAC CLOSE
12	AUX 5	FUEL PUMP RELAY
13	AUX 2	CHECK ENGINE LIGHT
14	INJ 5
15	INJ 2
16	IGN 2
17	PWR GND
18	IGN 12
19	WBO HEATER
20	AUX 4	FUEL CONSUMPTION
21	AUX 1	TACHO
22	INJ 6
23	INJ 3
24	PWR GND

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	H-BRIDGE 1+
8	H-BRIDGE 1-
9	FLEX FUEL
10	SWITCH 3
11	CAMSYNC 2
12	ANALOG 1
13	ANALOG 2
14	ANALOG 3
15	ANALOG 4
16	ANALOG 5
17	ANALOG 6
18	ANALOG GND

Adapter ECU side connector X6000

Pin number	Function	Information
X6001-1	SWITCHED 12V
X6001-2	SWITCHED 12V
X6001-3	SWITCHED 12V
X6001-4	SWITCHED 12V	SPARE FROM MAIN RELAY
X6001-5	SWITCHED 12V	SPARE FROM MAIN RELAY
X6001-6	POWER GROUND
X6001-7	POWER GROUND
X6001-8	POWER GROUND
X6001-9	POWER GROUND
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
X6002-20	AC COMPRESSOR RELAY
X6003-1	COOLANT TEMP SENSOR
X6003-2	AIR TEMP SENSOR
X6003-3	TPS
X6003-7	CRANK +
X6003-8	CRANK -
X6003-12	CAN High	FROM ECU
X6003-13	CAN High	Spare CANBUS connection
X6003-14	CAM SYNC
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
X6003-50	AC ENABLE
X6003-51	AC PRESSURE
X6004-1	VANOS INTAKE SOLENOID
X6004-12	ICV OPEN
X6004-13	TACHO
X6004-17	CHECK ENGINE LIGHT
X6004-18	ECONOMETER
X6004-22	ICV CLOSE
X6004-25	FUEL PUMP RELAY
X6004-27	5V SUPPLY	FROM ECU
X6004-28	5V SUPPLY	SPARE
X6004-29	5V SUPPLY	SPARE
X6004-30	5V SUPPLY	SPARE
X6004-37	ANALOG GROUND	ECU 39/29
X6004-38	ANALOG GROUND	ANALOG GND
X6004-39	ANALOG GROUND	SPARE
X6004-40	ANALOG GROUND	SPARE
X6005-1	12V SWITCHED	TO AUX 18/1
X6005-2	12V SWITCHED	SPARE
X6005-3	N/A
X6005-4	PWR GND	TO AUX 18/4
X6005-5	CAN HIGH	TO AUX 18/5
X6005-6	CAN HIGH	Spare CANBUS connection
X6005-7	PWR GND
X6005-8	CAN LOW	TO AUX 18/6
X6005-9	CAN LOW	Spare CANBUS connection

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Last change 30.07.2024, 22:21:09