100%
Injector low side · 2 pins
Injection channel 2 · 2 pins
Injector low side · 2 pins
Injection channel 4 · 2 pins
Ignition channel 1 · 2 pins
Igniter trigger · 2 pins
Ignition channel 3 · 2 pins
Igniter trigger · 2 pins
CKP signal · 2 pins
CMP sensor ground · 10 pins
Sync sensor + · 2 pins
CMP sensor ground · 10 pins
Digital input 1 · 2 pins
CMP sensor ground · 10 pins
TPS signal · 2 pins
MAP 5V supply · 3 pins
CMP sensor ground · 10 pins
Analog input 2 · 2 pins
MAP 5V supply · 3 pins
CMP sensor ground · 10 pins
Analog input 7 (switchable 1k pull-up) · 2 pins
CMP sensor ground · 10 pins
Analog input 8 (switchable 1k pull-up) · 2 pins
CMP sensor ground · 10 pins
Knock signal · 2 pins
CMP sensor ground · 10 pins
VTC solenoid + · 2 pins
VTC solenoid - · 2 pins
VTEC solenoid low side · 2 pins
IACV low side · 2 pins
VTEC pressure switch · 2 pins
CMP sensor ground · 10 pins
BHD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Aftermarket ECU
Injector low side · 2 pins
Injection channel 2 · 2 pins
Injector low side · 2 pins
Injection channel 4 · 2 pins
VTEC solenoid low side · 2 pins
IACV low side · 2 pins
VTC solenoid + · 2 pins
VTC solenoid - · 2 pins
Digital input 1 · 2 pins
VTEC pressure switch · 2 pins
Ignition channel 1 · 2 pins
Igniter trigger · 2 pins
Ignition channel 3 · 2 pins
Igniter trigger · 2 pins
Aux 9–10 14V supply
SL8-A
Aftermarket ECU
1Injection channel 1
2Injection channel 2
3Injection channel 3
4Injection channel 4
10Auxiliary output 1
11Auxiliary output 2
18Auxiliary output 9
19Auxiliary output 10
20Digital input 1
21Digital input 2
26Ignition channel 1
27Ignition channel 2
28Ignition channel 3
29Ignition channel 4
34Aux 9–10 14V supply
ECU 14V supply
5V ref
RELAY-R-COIL- Relay coil negative (ECU low-side driver)
RELAY-R-COIL+ Relay coil positive (ignition-switched +12V) (via IGN)
CKP signal · 2 pins
Sync sensor + · 2 pins
0V sensor
TPS signal · 2 pins
Analog input 2 · 2 pins
Knock signal · 2 pins
GND
Analog input 7 (switchable 1k pull-up) · 2 pins
Analog input 8 (switchable 1k pull-up) · 2 pins
GND
29–30 no data
SL8-B
Aftermarket ECU
1ECU 14V supply
2Sensor supply Vref1 5.0V
3EFI relay output (low side, 200 mA)
4Ignition switch input
5Crank index sensor +
7Sync sensor +
10Analog sensor 0V reference
11Analog input 1
12Analog input 2
16Knock 1 +
18ECU ground
20Analog input 7 (switchable 1k pull-up)
21Analog input 8 (switchable 1k pull-up)
26ECU ground
29–30 no data
Car battery
BATT-P
Car battery
-Battery negative / chassis ground
+Battery positive
GND
RELAY-R-IN Relay contact input (battery + via main fuse)
CKP
CKP
CKP
12VCKP +12V
GNDCKP sensor ground
SIGCKP signal
CKP +12V
0V sensor
CKP signal · 2 pins
CMPA
CMPA
CMPA
12VCMP +12V
GNDCMP sensor ground
SIGCMP signal
CMP +12V
0V sensor
Sync sensor + · 2 pins
CMPB
CMPB
CMPB
12VCMP +12V
GNDCMP sensor ground
SIGCMP signal
CMP +12V
0V sensor
Digital input 1 · 2 pins
COIL1
COIL1
COIL1
12VCoil +12V
GNDCoil ground
TRGIgniter trigger
Coil +12V
GND
Ignition channel 1 · 2 pins
COIL2
COIL2
COIL2
12VCoil +12V
GNDCoil ground
TRGIgniter trigger
Coil +12V
GND
Igniter trigger · 2 pins
COIL3
COIL3
COIL3
12VCoil +12V
GNDCoil ground
TRGIgniter trigger
Coil +12V
GND
Ignition channel 3 · 2 pins
COIL4
COIL4
COIL4
12VCoil +12V
GNDCoil ground
TRGIgniter trigger
Coil +12V
GND
Igniter trigger · 2 pins
ECT
ECT
ECT
GNDECT sensor ground
SIGECT signal
0V sensor
Analog input 8 (switchable 1k pull-up) · 2 pins
IACV
IACV
IACV
12VIACV +12V
SIGIACV low side
IACV +12V
IACV low side · 2 pins
IAT
IAT
IAT
GNDIAT sensor ground
SIGIAT signal
0V sensor
Analog input 7 (switchable 1k pull-up) · 2 pins
INJ1
INJ1
INJ1
12VInjector +12V (main relay)
SIGInjector low side
Injector +12V (main relay)
Injector low side · 2 pins
INJ2
INJ2
INJ2
12VInjector +12V (main relay)
SIGInjector low side
Injector +12V (main relay)
Injection channel 2 · 2 pins
INJ3
INJ3
INJ3
12VInjector +12V (main relay)
SIGInjector low side
Injector +12V (main relay)
Injector low side · 2 pins
INJ4
INJ4
INJ4
12VInjector +12V (main relay)
SIGInjector low side
Injector +12V (main relay)
Injection channel 4 · 2 pins
KNOCK
KNOCK
KNOCK
GNDKnock shield/return
SIGKnock signal
0V sensor
Knock signal · 2 pins
LAF
LAF
LAF
MAP
MAP
MAP
GNDMAP sensor ground
SIGMAP signal
VCCMAP 5V supply
0V sensor
Analog input 2 · 2 pins
MAP 5V supply
O2
O2
O2
Engine-bay main relay
RELAY-R
Engine-bay main relay
COIL-Relay coil negative (ECU low-side driver)
COIL+Relay coil positive (ignition-switched +12V)
INRelay contact input (battery + via main fuse)
OUTRelay contact output (switched +12V bus)
SL8-B-3 EFI relay output (low side, 200 mA)
Relay coil positive (ignition-switched +12V)
BATT-P-+ Battery positive
SP-12V · 15 pins
TPS
TPS
TPS
GNDTPS sensor ground
SIGTPS signal
VCCTPS 5V supply
0V sensor
TPS signal · 2 pins
TPS 5V supply
VTC
VTC
VTC
AVTC solenoid +
BVTC solenoid -
VTC solenoid + · 2 pins
VTC solenoid - · 2 pins
VTEC
VTEC
VTEC
12VVTEC solenoid +12V
SIGVTEC solenoid low side
VTEC solenoid +12V
VTEC solenoid low side · 2 pins
VTPSW
VTPSW
VTPSW
GNDSwitch ground
SIGVTEC pressure switch
0V sensor
VTEC pressure switch · 2 pins
SP-GND · 8 pins
SP-12V · 17 pins
IGN · 3 pins
Press enter or space to select a node. You can then use the arrow keys to move the node around. Press delete to remove it and escape to cancel.
Press enter or space to select an edge. You can then press delete to remove it or escape to cancel.