Fig 1 - MaxxECU Plugin kit consist of the following parts:1. MaxxECU CMC connector2. Vehicle harness adapter.3. 16-pin extra connector. 4. 3-pin connector for extra 0-5v sensor (ex. pressure sensor). 5. 2-pin connector for external intake temperature sensor (IAT). Sensor not included!

3.

4.

2.

1.

5.

2016-06-21

MaxxECU Plugin - Engine SpecificsNissan Skyline R34 GT-R

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

ECU installationStock Engine Control Unit (ECU) on this vehicle is mounted on passenger side floor, behind the plastic guard.• Remove the black large plastic guard, where the ECU is located.• Disconnect the stock ECU from vehicle harness connector.• Install MaxxECU harness into vehicle harness connector. Be sure to tighten connectors!• Install included MAP-sensor into engine manifold with included hose kit.• Vehicle is not equipped with an intake temperature sensor. Optional external sensor and cable is recommended.

Dynotuning Engine Management Motorsport 2

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.MaxxECU Nissan Plugin has extra flexible inputs.AIN 1, temp sensor or switches.AIN 2, temp sensor or switches.AIN 3, 0-5V input.AIN 4, 0-5V input. Extra 3-pin connector (4).Normal state of GPO 7 is output, but can be configured as digital input!

Extra outputs.MaxxECU Nissan Plugin offers extra output for flexible control like boost control, fan control.GPO 7,GPO 8 and INJ 8 (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 (temperature / switch) (input).15: AIN 2 (temperature / switch) (input).16: AIN 3 (0-5V) (input).

1: Wideband.2: Wideband.3: Wideband.4: Wideband.5: GPO 7 / DIN 36: GPO 8.7: -8: INJ 8.

16-pin connector

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

Plugin TriggerNissan uses a particular trigger sensor, called CAS, mounted on the front of one pulley. CAS sensor is similar in many Nissan models, but different cars uses different ”Sync window size”. Nissan GT-R R34 ”sync window size” is 24. Sometimes the CAS system generates strange trigger pulses which gives Trigger-Errors at start-up or low speed, this can usually be remedied by changing ”Trigger polarity”.Since the CAS is mounted on the camshaft, instead of crank (where it should be mounted) a precise ignition spark angle can not be guaranteed because of the flexibility in the system. Over 500WHP, go for a crank trigger kit.Be sure to check the ignition timing with a timing light, to ensure a correct ignition angle. READ chapter 5 in Handbook!

NotesMaxxECU has some built in output test and diagnostics, see Diagnostics ---> Output test to test certain outputs.