I was asked several weeks ago where to find Datamaster for MEFI. I've had this on my laptop for years but I'm not sure if they support it any more.
Also, here's a list of pinouts that was posted to Monodax years ago.
MEFI CONTROLLER CONNECTIONS
MEFI 1
J1 Connector:
J1-1 Knock Sensor Input
J1-2 Coolant Temp. Sensor Input
J1-3
J1-4 I/O Fluid Level Switch
J1-5 Master/Slave (twin engine application)
J1-6 Oil Pressure Switch
J1-7 Diagnostic Output (blink light)
J1-8
J1-9 MAP Sensor Input
J1-10 TPS Sensor Input
J1-11 12V Ignition
J1-12
J1-13 Sensor Ground
J1-14 ECM Ground
J1-15 5V Sensor Reference
J1-16 12V Battery
J1-17
J1-18 Serial Data
J1-19 Water Flow Switch
J1-20 Oil Level Switch
J1-21 Emergency Stop Switch
J1-22 Trans Temp / Trim Set
J1-23
J1-24 Intake Air Temp. Sensor Input
J1-25 Trim Sensor Input
J1-26
J1-27
J1-28
J1-29 Sensor Ground
J1-30 ECM Ground
J1-31 5V Sensor Reference
J1-32 12V Battery
J2 Connector
J2-1
J2-2
J2-3
J2-4
J2-5 Injector Driver
J2-6 Distributor Reference Low
J2-7 Port Fuel Jumper
J2-8 Distributor Reference High
J2-9 Fuel Pump Relay Driver
J2-10
J2-11 Coolant Lamp Output
J2-12 RPM Reduction Warning Buzzer Output
J2-13 Idle Air Control Coil A Low
J2-14 Idle Air Control Coil B High
J2-15 Fuel Injector Ground
J2-16
J2-17
J2-18
J2-19
J2-20 Fuel Injector Ground
J2-21 Fuel Injector Driver
J2-22 Port Fuel Jumper
J2-23 Ignition On Control (Spark Out)
J2-24 Ignition Bypass (For Timing Set)
J2-25
J2-26 I/O Fluid / Water Flow Lamp Output
J2-27 Oil Pressure Lamp Output
J2-28 Idle Air Control Coil A High
J2-29 Idle Air Control Coil B Low
J2-30 Oil Level Lamp Output
J2-31 Malfunction Indicator Lamp Output
J2-32
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