100%
Stock ECU being replaced
ECU power +14V (main relay)
MICROSQUIRT-A-31 OPTO-
MICROSQUIRT-A-6 FLEX
MICROSQUIRT-A-8 FP (pump)
MICROSQUIRT-A-16 ALED
MICROSQUIRT-A-17 WLED
OEM-1
Stock ECU being replaced
BECU power +14V (main relay)
FBrake switch
GPower steering pressure switch
ICondenser fan relay
RCooling fan relay
SA/C clutch relay
MICROSQUIRT-A-26 MAT
MICROSQUIRT-A-34 O2
MICROSQUIRT-A-30 OPTO+
MICROSQUIRT-A-25 CLT
MICROSQUIRT-A-4 VR2+
5V ref
MICROSQUIRT-A-32 VR1+
MICROSQUIRT-A-35 TACHO
MICROSQUIRT-A-5 SPAREADC2 (MAF)
OEM-2
Stock ECU being replaced
BIntake air temperature (IAT)
CFront O2 signal
DVehicle speed
ECoolant temperature (ECT)
HCam position (CMP)
I+5V sensor supply
JCrank position (CKP)
KTachometer output
LMass air flow (MAF)
GND
GND
GND
MICROSQUIRT-A-27 TPS
0V sensor
MICROSQUIRT-A-11 SPK B (IGN2)
MICROSQUIRT-A-12 SPK A (IGN 1)
MICROSQUIRT-A-29 SPAREADC
ISC valve +14V feed
MICROSQUIRT-A-7 FIDLE
MICROSQUIRT-A-9 INJ 1
MICROSQUIRT-A-10 INJ 2
OEM-3
Stock ECU being replaced
APower ground
BPower ground
CPower ground
EThrottle position (TPS)
FSignal ground
GIgnition 1 (coils 1+4, wasted spark)
HIgnition 2 (coils 2+3, wasted spark)
JRear O2 signal
MISC valve +14V feed
NFuel pump relay
WInjector 1
XInjector 2
MICROSQUIRT
MICROSQUIRT-A
MICROSQUIRT
1+12V In
4VR2+
5SPAREADC2 (MAF)
6FLEX
7FIDLE
8FP (pump)
9INJ 1
10INJ 2
11SPK B (IGN2)
12SPK A (IGN 1)
16ALED
17WLED
18Sensor Ground
19Serial Ground
20Sensor Ground
22POWER GROUND
23POWER GROUND
25CLT
26MAT
27TPS
28TPS VREF (5V)
29SPAREADC
30OPTO+
31OPTO-
32VR1+
34O2
35TACHO
+12V In
OEM-2-H Cam position (CMP)
OEM-2-L Mass air flow (MAF)
OEM-1-G Power steering pressure switch
OEM-3-N Fuel pump relay
OEM-1-I Condenser fan relay
OEM-3-W Injector 1
OEM-3-X Injector 2
OEM-3-G Ignition 1 (coils 1+4, wasted spark)
OEM-3-H Ignition 2 (coils 2+3, wasted spark)
OEM-1-R Cooling fan relay
OEM-1-S A/C clutch relay
0V sensor
0V sensor
0V sensor
GND
GND
OEM-2-E Coolant temperature (ECT)
OEM-2-B Intake air temperature (IAT)
OEM-3-E Throttle position (TPS)
5V ref
OEM-3-J Rear O2 signal
OEM-2-D Vehicle speed
OEM-1-F Brake switch
OEM-2-J Crank position (CKP)
OEM-2-C Front O2 signal
OEM-2-K Tachometer output
SP-14V · 4 pins
SP-0V · 5 pins
SP-GND · 6 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.