BMW M62tu non vanos and non drive by wire ME5.2.1 V2

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PNPECU MaxxECU M62tu Race solution

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This page refers to version 2 PNPECU M62tu Race solution only. Make sure to check the adapter for your version.

PNPECU has developed the M62tu solution to satisfy customer requests to allow the M62tu engine to be fully controlled, the ME5.2.1 is a 5 plug ECU while the ME5.2 is the single 88pin plug. It´s important before ordering that you are aware of what M62 engine loom variant you have.

Adaper extra connector information

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• 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

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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.

There is no direct support for the original 6HP BMW TCU and is very unlikely it will ever exist.

For direct PNP communications with a stock BMW DCT 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 newer transmissions to the emulation compatibility list.

100% compatible with all manual gearboxes!

M62tu ME5.2.1 OEM Sensors Usage

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• MAF is not used
• Pre cat lambda sensors are not used
• Post cat sensors are not used
• Air temp sensor is not used - will be added in version 3
• Knock sensors - knock for cylinders 3/4 and 5/6 are not used as only two inputs exist in the MaxxECU

• Camshaft signal - used as OEM
• Coolant temperature - used as OEM
• TPS sensor - used as OEM
• Vehicle Speed Sensor Rear Right - used for vehicle speed
• Oil level and temperature sensor

M62tu OEM Actuator Usage

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• Ignition coil wiring - see options below for more details
• Tachometer signal
• Electric thermostat
• Fuel pump relay
• Idle control valve
• EVAP control valve

CAN BUS Compatibility

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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 M62tu 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

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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
• VAG r8 coils and connectors - PNPECU supplied R8 coils, coil adapters also for PNP fitment

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 or each side of the engine
• Eight 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

Race adapter without ignition box pinout information

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Below is the pin functions of the M62tu ME5.2.1 V2 adapter. The ignition option dictates if the Molex connector is in the adapter or not.

BMW M62tu non vanos and non drive by wire ME5.2.1 V2

Race Connector 1 - 48pin

Pin number	Function	Information
A1	GPO 5 - FUEL PUMP RELAY
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 - Spare output
C1	GPO 7 - Spare output
C2	IGN 5
C3	IGN 6
C4	GPO 2 - Spare output
D1	WBO2 Heater
D2	IGN 7
D3	IGN 8
D4	GPO 3 - ELECTRIC THERMOSTAT
E1	CAN High
E2	CAN Low
E3	GND Shield
E4	GPO 4 - Spare 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 - Spare input
J4	AIN 4 - Spare input
K1	INJ 1
K2	INJ 2
K3	DIN/VR 1 - Spare input
K4	DIN/VR 2 - Spare input
L1	INJ 8
L2	INJ 7
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 - Spare input
F2	AIN 8 - Spare input
F3	DIN/VR 4 - VSS
F4	DIN/VR 5 - OIL LEVEL SWITCH
G1	GPO 15 - Spare output
G2	GPO 16 - Spare output
G3	AIN 5 - Spare input
G4	Power GND
H1	GPO 14 - EVAP VALVE
H2	GPO 11 - IAC CLOSE
H3	GPO 13 - AC COMPRESSOR CONTROL
H4	GPO 12 - IAC OPEN

Auxiliary connector - 14pin without ignition Box

Pin number	Function	Information
1	12V SUPPLY
2	5V SUPPLY
3	ANALOG GROUND
4	POWER GROUND
5	GPO 16
6	GPO 16
7	ANALOG IN 1
8	DIGITAL IN 1
9	GPO 7
10	GPO 4
11	ANALOG IN 3
12	ANALOG IN 4
13	DIGITAL IN 2
14	GPO 2

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	IGNITION COIL 7
18	IGNITION COIL 8
18	POWER GROUND
20	POWER GROUND

AIR TEMP CONNECTOR AND EXTENSION - 2pin

Pin number	Function	Information
1	AIR TEMP SIGNAL	FROM EXTENSION
2	ANALOG GROUND	FROM EXTENSION

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Last change 10.06.2025, 18:14:27