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Compatible with MaxxECU STREET/V1/RACE/PRO

 

VANOS engine

This harness is built based on the non VANOS head, which means the VANOS heads CAM/HOME sensor connection is of another type.

 

There is two options to solve the problem if you have a VANOS head:

1.Change the CAM sensor to the one from the non-VANOS engine, BMW artnr 12141726590.

2.Cut the CAM connector in the harness, and replace with a connector that fits and also add switched +12V power supply to the sensor according to the below pinout.

 

 

Pin

VANOS CAM sensor pinout

Non-VANOS CAM sensor pinout

1

+12V

Signal

2

Signal

Sensor GND

3

Sensor GND

Shield

 

 

Harness support

Terminated engine harness

MaxxECU I/O

Note

+12V to injectors, ignition and solenoids

Yes


Cylinder head GND

Yes


OEM generator

Yes


OEM engine starter

Yes


Injectors (Bosch JPT connectors)

INJ


Ignition (VAG 1.8T coil-on-plug)

IGN


OEM intake temperature sensor

IAT


OEM coolant temperature sensor

CLT


OEM throttle position sensor

TPS


OEM idle valve solenoid

GPO 4, 5

Not available on MaxxECU STREET

OEM crank trigger

TRIGGER


OEM CAM trigger

HOME


VANOS solenoid

GPO 3

 

Boost solenoid

GPO 1

(no solenoid included)

Fuel pump control

GPO 2/or use any available output


Engine FAN control

GPO 6/or use any available output

Not available on MaxxECU STREET

Wideband LSU connector

Yes

LSU 4.2

MAP sensor hose in harness

Yes


 

 

Length

Start

End

Total length

MaxxECU CMC connector

Firewall entry/bushing

850mm

MaxxECU CMC connector

LSU connector

1600mm

MaxxECU CMC connector

IGN 1 coil connector

1950mm

 

 

Harness connectors

clip0495

Injectors - Bosch JPT 2-way

 

 

clip0496

Trigger/HOME - Bosch JPT 3-way

CLT - Bosch JPT 2-way

 

 

clip0497

IDLE solenoid = Bosch JPT 3-way

VANOS solenoid - Bosch JPT 2-way

 

 

clip0498

Lambda - Bosch LSU 4.2 6-way

Boost - Superseal 2-way

 

 

clip0499

Ignition coils - VAG 4-way (COP)

 

 

clip0500

Ignition coils ground <-- DO NOT FORGET TO MOUNT IN CYLINDER HEAD

 

 

Installation

The installation of the terminated engine harness is pretty straight-forward.

1.Mount all engine connectors, alternator and starter, do not forget Engine GND.

2.Place VAG coils (not included) and connect to harness. wired for LONG coils!!!!

3.Drill a 54mm hole in the firewall for harness bushing.

4.Route harness thru firewall and mount MaxxECU. Mounting position is very dependent on engine placement and vehicle model.

5.Connect +12V with external relay (fused with 20A) to the extra 12-pin connector, pin 7 (G).

6.Connect +12V with external relay (fused with 20A) to the extra 12-pin connector, pin 1 (A).

7.Connect engine ground (brown wire) on cylinder head.

8.Connect alternator (pin 12 (M) on 12-pin connector) to +12V ignition (in serial with a charge bulb).

9.Connect starter trigger (pin 6 (F) on 12-pin connector) to start button (+12V).

10.Wire fuel pump, fan, ecu power, ground, alternator and engine starter to 12-pin connector.

11.Wire extra connections like wheel speeds, ethanol sensor etc to 16-pin connector.

 

 

12-pin connector (seen from the wire side)

 

12-pin_connector

Note: Pinout is from the wiring side of the extra connector, not the terminated harness.

 

Pin

Description

1 (A)

+12V ignition coils power supply

2 (B)

Engine ground

3 (C)

GPO 2 (fuel pump)

4 (D)

GPO 6 (FAN)

5 (E)


6 (F)

Engine starter (+12V) - Connect to ignition key or switch

7 (G)

+12V ECU power supply

8 (H)


9 (J)


10 (K)


11 (L)


12 (M)

Alternator

 

 

 

16-pin connector (seen from the wire side)

16-pin_connector

Note: Pinout is from the wiring side of the extra connector, not the terminated harness.

 

 

Pin

Description

Usage

Note

1 (H)

+5V power supply

 

 

2 (G)

INJ 8

Output

Not available on STREET

3 (F)

INJ 7

Output

Not available on STREET

4 (E)

GPO 8/TACHO

0-5V analog input

 

5 (D)

GPO 7/DIN3

Output or digital input

Not available on STREET

6 (C)

GPO 6

Output

Not available on STREET

7 (B)

GPO 3

Output

Parallel connected with VANOS connector

8 (A)

GPO 2

Output

 

9 (S)

CAN L

 

 

10 (R)

CAN H

 

 

11 (P)

AIN 4

0-5V analog input


12 (N)

AIN 3

0-5V analog input


13 (M)

AIN 2

temperature input


14 (L)

AIN 1

temperature input


15 (K)

DIN 2

Digital input

 

16 (J)

DIN 1

Digital input

 

 

 

 

Extra information

ground_is_important

Note: Ground is important...

 

 

See also

Product page

Download base maps