Fig 1 - MaxxECU kit consist of the following parts:1. MaxxECU CMC connector2. Audi vehicle harness adapter.3.16-pin extra connector. 4. 3-pin connector for extra 0-5v sensor (ex. pressure sensor). 5. 20-pin connector for E-Throttle module.

Vehicle EngineCode Year LSU sensor Note

Audi S3 BAM 2003 Uses stock LSU 4.2 sensor

Audi S3 AMK 2000 - 2003 Uses stock LSU 4.2 sensor

Audi S3 APY 1998 - 1999 External sensor needed

Audi S3 AUL 1999 - 2001 External sensor needed

Golf IV GTI AUM/AUQ 2002+ Uses stock LSU 4.2 sensor No auto transmission support!

Skoda Octavia RS AUQ 2000 - 2005 Uses stock LSU 4.2 sensor

Seat Leon AMK/ARY/AUQ 2002+ Uses stock LSU 4.2 sensor

Seat Leon ARY 2000 - 2004 Uses stock LSU 4.2 sensor

Seat Leon AJQ 2001+ Uses stock LSU 4.2 sensor

Audi TT APX 1999 External sensor needed

Audi TT APX/APP/AJQ 2000+ External sensor needed

Audi TT AUM/AUQ/ARY/BAM 2002+ Uses stock LSU 4.2 sensor

4.

3.

2.1.

5.

2016-03-30

MaxxECU Plugin - Engine SpecificsAudi 1.8T ME 7.5

Maxxtuning AB - www.maxxtuning.eu - info@maxxtuning.se

Dynotuning Engine Management Motorsport

Step1: Remove wipers and plastic covers. Drill out the rivets.

Step3: Drill out the rivets.

Step5: Remove plastic cover.

Step2: Remove stock ECU connectors and gently pull out the ECU.

Step6: Install MAP-sensor hose to intake manifold and route it to the MaxxECU and install it. Put back plastic cover.

2 3

ECU installationStock Engine Control Unit (ECU) on this vehicle is mounted in engine bay, in the center below windshield.

Dynotuning Engine Management Motorsport

Step9: Gently bend the ECU plate to make room for the MaxxECU unit.

Step8: Install E-Throttle connector (5) to the E-Throttle module.Use adhesive tape or velcro to install the E-Throttle module up-side down with connectors downwards, to prevent water to get into the module.

NOTE: E-Throttle module is not waterproofed, make sure NO water can enter your MaxxECU products.

Step7: If your vehicle (se table in page one) do have a stock LSU sensor already mounted, MaxxECU uses it directly.

If no factory wideband sensor is mounted, please install a new (in-cluded) Bosch LSU 4.2 sensor in your exhaust system and route the cables to the MaxxECU 16-pin connector using the included lambda cable. See Plugin general manual for wiring information!

Step10: Install MaxxECU CMC connector, MAP-sensor hose and USB cable before sliding in the MaxxECU into position. Use adhe-sive tape or velcro for mounting.

NOTE: MaxxECU V1 is NOT waterproofed, make sure NO water can enter your MaxxECU unit after installation!

Step11: Connect harness adapter to vehicle harness, make sure the connectors are properly installed and secured.

2 3

Dynotuning Engine Management Motorsport 4

1 2 3 4 5 6 7 8

9 10 11 12 13 14 15 16

G1

G2

F2

F1

J1

J2

J3

J4

K3

K4

H1

E3

F3

F4

G3

G4

D1

H3

H4

H2

M4

L4

E2

E1

A2

A3

B2

B3

C2

C3

D2

D3

K1

K2

M1

M2

M3

L3

L2

L1

B4

C4

D4

E4

A1

B1

C1

A4

MaxxECU REV5+2014-02-05

86

87

85

30

AIR TEMP SENSOR, (F2)

5V SENSOR SUPPLY, (G1)

THROTTLE SENSOR, (G2)

COOLANT SENSOR, (F1)

ANALOG IN 1, TEMP, (J1)

ANALOG IN 2, TEMP, (J2)

ANALOG IN 3, 0-5V, (J3)

ANALOG IN 4, 0-5V, (J4)

DIGITAL IN 1, (K3)

DIGITAL IN 2, (K4)

SENSOR GND

IGNITION CYL 1, (A2)

CAN L

CAN H

IGNITION CYL 2, (A3)

IGNITION CYL 3, (B2)

IGNITION CYL 4, (B3)

IGNITION CYL 5, (C2)

IGNITION CYL 6, (C3)

IGNITION CYL 7, (D2)

IGNITION CYL 8, (D3)

INJECTOR CYL 1, (K1)

INJECTOR CYL 2, (K2)

INJECTOR CYL 3, (M1)

INJECTOR CYL 4, (M2)

INJECTOR CYL 5, (M3)

INJECTOR CYL 6, (L3)

INJECTOR CYL 7, (L2)

INJECTOR CYL 8, (L1)

GP OUT 1, (B4)

GP OUT 2, (C4)

GP OUT 3, (D4)

GP OUT 4, (E4)

GP OUT 5, (A1)

GP OUT 6, (B1)

GP OUT 7, (C1)

TACH/GP OUT 8, (A4)

WBO2 HTR PIN 4, (D1)

SHIELD GND

WBO2 COM

WBO2 VS/02 IN

WBO2 IP

WBO2 RCAL

TRIGGER, (H3)

HOME/CAM, (H4)

VR GND, (H2)

12V ECU, (M4)

ENGINE GROUND, (L4)

12V ECU, (C)

12V IGNITION, (D)

12V INJECTORS

12V GP OUT

12V LAMBDA (PIN3)

Ignition coil 1

Ignition coil 2

Ignition coil 3

Ignition coil 4

Ignition coil 5

Ignition coil 6

Ignition coil 7

Ignition coil 8

+12v power supply for ignition coils

Injector 1

Injector 2

Injector 3

Injector 4

Injector 5

Injector 6

Injector 7

Injector 8

Extra output 1

Extra output 2

Extra output 3

Extra output 4

Extra output 5 / fuelpump

Extra output 6 / fan

Extra output 7

Tachmometer / extra output 8

blue

blue

blue

blue

blue

blue

blue

blue

grey

grey

grey

grey

grey

grey

grey

grey

green

green

green

green

green

green

green

green

+12v for extra outputs

red

Options for connecting ignition coils

External ignition module

+12V

from ECU IGN in

gnd

out

earthed in cylinderhead”dumb” ignition coil

noise filterTo be placed near the coil

grey

pink

CAN-bus

Ignition coils with built-in amplifier

from ECU IGN

+12V

ingnd+

”smart” tändspole

to be placed near coil

earthed in cylinderhead

störfilter

+12V

from ECU GPO

Extra output wiring

consumption (max 1.5A)

red

red

black

black

black

black

black

black

black

black

black

brown

+ut

-Throttle sensor (TPS)

Intake ir temperature sensor (IAT)

Coolant temperature sensor(CLT)

Extra temperature sensor

Extra 0-5v sensor input

Extra 0-5v sensor input

Digital input 1

Digital input 2

Sensor GND

Extra temperature sensor

black / white

Wideband lambda sensor

Crank sensor

Home sensor

yellow

brown

white

green

green

white

white

brown

shield

GND (engine cylinder)

12-pol connector

extra

brown

extra

extraextraextraextraextraextraextra

Available pins in connectoruses as needed.

Small pin = max 15ABig pin = max 25A

+1

2V

from

pow

er s

witc

h or

rel

ay

15A (ECU)

15A (Ignition)

redWideband lambda (internal controller)

Use ONLY includedBosch #0 258 007 057

Wideband lambda(external controller)

External wideband controllers (AEM, Innovate etc) should be con-nected to a 0-5v input and should be configured as ”Lambdasensor” in MTune.

Wiring alternative for crank / home signal

Opto/hall (digital)

VR-sensor (analog)

* = +5V or +12V depending on sensor type.

whitebrown

+output

gnd

+

-

white

brown

Notes:Cables shields should only be grounded through the ECU.Text in blue is the cable markings.

Wiring alternative for wideband lambda sensor

TRIGGER (grey

HOME/CAM (grey/black)

WBO2 (grey)

Injector wiring

+12Vfrom ECU INJ

Injectors are not polarity sensitive, but direct them all the the same way.

Digital input wiring

GND

switch

DINx to ECU

Relay wirings

+12V

from ECU GPO

Fuse!

Fan / pump etc.

shield

LSU

con

nect

or s

een

from

th

e ca

ble

side

white

yellow

WBO2 HTR PIN4, (D1) (green)

12V LAMBDA (PIN 3) (red

green

brown

Extra inputs.GPO 7 (can be used as digital input), flexfuel sensor, switch.AIN 1, tempearture input.AIN 3, 0-5v input.AIN 4, 0-5V input. Extra 3-pin connector (4).

Extra outputs.Plugin offers extra outputs for flexible control like boost control, fan control.INJ 8, GPO 7(if not used as digital input) (GND switched outputs).

Fig 3 - 3-pin Superseal connector.1: Signal GND.2: AIN 4 (0-5V) input.3: +5V from ECU.

9: Wideband.10: Wideband.11: Wideband.12: +12V (output).13: GND.14: AIN 1 (input)15: -16: AIN 3 (input)

1: Wideband.2: Wideband.3: Wideband.4: Wideband.5: -6: -7: INJ 8 (output)8: GPO 7 (in/output)

16-pin connector

Fig 2 - Extra connector (3) seen from cable side.

Plugin TriggerUsing stock triggers on crank and cam.

NotesMaxxECU has some built in output test and diagnostics, see Diagnostics ---> Output test to test certain outputs. This will only work if fuel pump is set to ”Always active” since fuel pump relay is also powering injectors and ignition.