MaxxECU Plugin Manual Nissan S14 SR20 Engine

MaxxECU Plugin Manual Nissan S14 SR20 Engine

MaxxECU Plugin - Engine Specifics
Nissan S14 SR20 (76-pin)
2016-06-21
1.
5.
2.
4.
3.
Fig 1 - MaxxECU Plugin kit consist of the following parts:
1. MaxxECU CMC connector
2. 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!
ECU installation
Stock Engine Control Unit (ECU) on this vehicle is mounted on passenger side floor, behind the plastic guard on the right side.
• 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.
Maxxtuning AB - www.maxxtuning.eu - [email protected]
16-pin connector
1
red
black
F1
COOLANT SENSOR, (F1)
black
1:
E3
SHIELD GND
DA (PIN3)
E1
CAN H
grey
11
blue
A3
IGNITION CYL 2, (A3)
blue
B2
IGNITION CYL 3, (B2)
blue
B3
IGNITION CYL 4, (B3)
blue
C2
IGNITION CYL 5, (C2)
blue
C3
IGNITION CYL 6, (C3)
blue
D2
IGNITION CYL 7, (D2)
blue
D3
IGNITION CYL 8, (D3)
blue
K1
INJECTOR CYL 1, (K1)
K2
INJECTOR CYL 2, (K2)
M1
INJECTOR CYL 3, (M1)
13
white
M (grey/black)
brown
brown
H4
HOME/CAM, (H4)
H2
VR GND, (H2)
green
C4
GP OUT 2, (C4)
green
D4
GP OUT 3, (D4)
green
Options for connecting ignition coils
Fig 2 - Extra connector (3)
seen from cable side.
15
16
from ECU IGN
)
L4
ENGINE GROUND, (L4)
earthed in cylinderhead
+12v power supply
for ignition coils
Injector 1
Injector 2
Injector 3
Injector 4
Injector 5
Injector wiring
Fig 3 - 3-pin
Superseal connector.
from ECU INJ
+12V
1: Signal
GND.
2: AIN 4 (0-5V) input.
Injectors are not polarity sensitive, but direct
3:way.
+5V from ECU.
them all the the same
Injector 6
Extra output wiring
Injector 7
Injector 8
12V INJECTORS
Extra output 2
consumption
(max 1.5A)
from ECU GPO
Extra output 3
Relay wirings
+12V
Fuse!
Extra output 6 / fan
green
Extra output 7
green
30
Tachmometer / extra output 8
red
12V GP OUT
12V IGNITION, (D)
85
+12v for extra outputs
86
87
Fan / pump
etc.
extra
extra
extra
extra
extra
extra
extra
extra
nectoruses
as needed.
= max 15A
= max 25A
+12V
Extra output 1
12V ECU, (C)
ion)
out
To be placed
green
Extra outputs.
Extra output 4
M4
red
A1
green
MaxxECU Nissan Plugin
offers
extra output forGPflexible
fan5 control.
12V ECU,
(M4)
OUT 5, (A1)control like boost control,
Extra output
/ fuelpump
GPO 7, GPO 8, INJ 8 (GND switched outputs). GP OUT 6, (B1)B1 green
12-pol connector
extra
in
+12V
E4
GP OUT 4, (E4)
C1
GP OUT 7, (C1)
A4
TACH/GP OUT 8, (A4)
earthed in cylinderhead
gnd
Ignition coil 2
9: Wideband.
near the coil
Ignition coil 3
10: Wideband.
Ignition coil 4
11: Wideband.
Ignition coils with built-in amplifier
12: +12V
(output).
Ignition
coil 5
from ECU IGN
in
13: GND.
Ignition coil 6
gnd
+12V
14: AIN Ignition
1 (temperature
/
switch)
(input).
+
coil 7
to
be
placed
15: AIN 2 (temperature / switch) (input).
near
coil
Ignition coil 8
16:
red AIN 3 (0-5V) (input).
grey
B4
GP OUT 1, (B4)
14
Ignition coil 1
shield
rey
8
CAN-bus
12
A2
IGNITION CYL 1, (A2)
7
External ignition module
Extra inputs.
grey
yellow F3
WBO2 COM
MaxxECU Nissan
Plugin
has extra flexible inputs.
grey
F4
AIN 1, temp brown
sensor
or switches.
WBO2
VS/02 IN
M2 grey
INJECTOR CYL 4, (M2)
white G3 or switches.
AIN 2, temp sensor
WBO2 IP
M3 grey
INJECTOR CYL 5, (M3)
G4
AIN 3, 0-5V input.
green
WBO2 RCAL
L3 grey
AIN 4, 0-5V input.
Extra 3-pin connector (4).
INJECTOR CYL 6, (L3)
green D1
WBO2 HTR PIN 4, (D1)
grey
Normal state of GPO 7 is output, but can be
configuredL2as
INJECTOR CYL 7, (L2)
H3
white
L1
digital input!
grey
TRIGGER, (H3)
INJECTOR CYL 8, (L1)
shield
ey)
pink
6
”smart” tändspole
black / white
10
E2
CAN L
5
störfilter
J1
Wideband.
ANALOG IN 1, TEMP, (J1)
J2
black
2: Wideband.
ANALOG IN 2, TEMP, (J2)
J3
3: Wideband.
black
ANALOG IN 3, 0-5V, (J3)
4: Wideband.
J4
black
ANALOG IN 4, 0-5V, (J4)
5: GPO 7 / DIN 3
black K3DIGITAL IN 1, (K3)
6: GPO 8
black K4DIGITAL IN 2, (K4)
7: -H1
brown
8: INJ
8 GND
SENSOR
9
4
noise filter
black
3
”dumb” ignition coil
black
G1
5V SENSOR SUPPLY, (G1)
G2
THROTTLE SENSOR, (G2)
F2
AIR TEMP SENSOR, (F2)
2
from ECU GPO
MaxxECU REV5+
2014-02-05
Plugin Trigger
Nissan 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 S14a / S15 SR20 uses ”sync window size” to be 16.
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!
Notes
MaxxECU has some built in output test and diagnostics, see Diagnostics ---> Output test to test certain outputs.
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