MICROSQUIRT-A-30 OPTO+
MICROSQUIRT-A-34 O2
MICROSQUIRT-A-8 FP (pump)
0V sensor
0V sensor
5V ref
MICROSQUIRT-A-26 MAT
MICROSQUIRT-A-25 CLT
MICROSQUIRT-A-31 OPTO-
MICROSQUIRT-A-9 INJ 1
GND
ECU power (control-unit relay)
MICROSQUIRT-A-6 FLEX
5V ref
MICROSQUIRT-A-4 VR2+
GND
MICROSQUIRT-A-5 SPAREADC2 (MAF)
MICROSQUIRT-A-7 FIDLE
MICROSQUIRT-A-16 ALED
MICROSQUIRT-A-11 SPK B (IGN2)
OEM-A
Stock ECU being replaced
1Starter signal (term 50)
2Oxygen (lambda) sensor signal
3Fuel pump relay control
5Knock sensor return
6Sensor ground (CTS/Hall/AFM/throttle)
8Hall sender supply (distributor)
9Intake air temperature sensor
10Coolant temperature sensor
11Idle/WOT throttle switch
12Injector driver (batch, all 4)
13Ground
14ECU power (control-unit relay)
16A/C compressor signal
17AFM potentiometer supply
18Hall sender signal (engine speed)
19Ground
21AFM signal
22Idle stabilizer valve coil 1
23Idle stabilizer valve coil 2
25Ignition timing signal to TCI