Megasquirt MS3 competition wiring

3.5 meter wiring harness crimped on connectors for Megasquirt MS3 competition. DB9 to DB9 communication cable and RS232 adapter are sold separately from this wiring harness. The connector cable for Can Bus is not included, this cable is delivered with products that have Can Bus communication with the unit.

Special automotive wiring resistant to gasoline, oil and acids, its temperature range according to ISO6722 is from -40ºC to +105ºC continuous. Wiring manufactured with thin wall coating according to DIN 72551, but maintaining the same copper section, allows for thinner wiring harnesses. Meets the standards of many automotive manufacturers, Bosch, BMW, Fiat, VW, Ford MAN.

The following list shows an example of the cable color for each pin, it is advisable to check the wiring before installation, as this example may change for different reasons.

Connector 1:

Pin 1 White, Launch IN.
Pin 2 Grey/Red, Datalog IN.
Pin 3 Red/White, +12V ECU power supply.
Pin 4-5-6 Black, ground to engine block.
Pin 7, Green/Brown, ground return for throttle potentiometer, air temperature sensor and engine temperature sensor.
Pin 8 Red, 5V throttle potentiometer power supply.
Pin 9-10 Shielded cable 2nd camshaft sensor.
Pin 11 Pink, Table Switch.
Pin 12 Orange, Air temperature sensor.
Pin 13 Yellow, Wide band probe signal.
Pin 14 Violet, Throttle potentiometer signal.
Pin 15 Brown, Engine temperature sensor.
Pin 16 Green, PT4.
Pin 17-18 Shielded cable crankshaft sensor.
Pin 19-20 Shielded cable 1st camshaft sensor.

Connector 2:

Pin 1 Violet/green, D14 PM3.
Pin 2 Violet/white, EGO 2.
Pin 3 Violet/yellow, NITROUS IN.
Pin 4 Empty
Pin 5 Violet/red SPARE ADC.
Pin 6 White/yellow, JS5.
Pin 7 Brown/white, FLEX.
Pin 8 Brown/yellow, EXT.MAP.
Pin 9 Empty (use on inductive wheel speed sensor with additional board).
Pin 10 Orange/green, JS7.
Pin 11 Empty (use on inductive wheel speed sensor with additional board).
Pin 12 Violet/brown, PE1.
Pin 13 Empty (use on inductive wheel speed sensor with additional board).
Pin 14 Brown/Orange, JS11.
Pin 15 Empty (use in inductive wheel speed sensor with additional board).
Pin 16 Brown/Grey, JS4.

Connector 3:

Pin 1 White/Black, IDLE (PWM Idle Valve).
Pin 2 Yellow/Orange, TACHO (Rev counter).
Pin 3 Orange/Red, FP (Fuel Pump).
Pin 4 Violet/Pink VVT (Variable Valve Timing).
Pin 5 Grey/Yellow, BOOST (Turbo Solenoid).
Pin 6 White/Pink, IAC1B (Stepper Idle Valve).
Pin 7 White/Violet, IAC1A (Stepper Idle Valve).
Pin 8 White/Green, IAC2A (Stepper Idle Valve).
Pin 9 White/Red, IAC2B (Idle Valve Stepper).
Pin 10-11-12 Black, Ground to engine block.
Pin 13 Yellow/Green, FIDLE (Idle Valve PWM).
Pin 14 Orange/Violet, BANK1
Pin 15 Yellow/Blue, BANK2
Pin 16 Black, Ground to engine block.
Pin 17 Blue/White, INJ D injection output 4.
Pin 18 Grey, SPARK D, ignition output 4.
Pin 19 Blue/Red, INJ C, injection output 3.
Pin 20 Red/Black, SPARK C, ignition output 3.
Pin 21 Blue/BLACK, INJ B, injection output 2.
Pin 22 Yellow/Black, SPARK B, ignition output 2.
Pin 23 Blue, INJ A, injection output 1.
Pin 24 Grey/Black, SPARK A, ignition output 1.

Connector 4:

Pin 1 No connection, outputs for future upgrades.
Pin 2 No connection, outputs for future upgrades.
Pin 3 No connection, outputs for future upgrades.
Pin 4 No connection, outputs for future upgrades.
Pin 5 and 6 Black, ground to engine block.
Pin 7 Orange/Grey, NITROUS 2.
Pin 8 Brown/Red, NITROUS 1.
Pin 9 White/Orange, D16 PM4.
Pin 10 Violet/Black, SPARK H (Ignition Output 8).
Pin 11 White/Blue, INJ H (Injection Output 8).
Pin 12 Pink/Black, SPARK G (Ignition Output 7).
Pin 13 Blue/Yellow, INJ G (Injection Output 7).
Pin 14 Orange/Black, SPARK F (Ignition Output 6).
Pin 15 Violet/Blue, INJ F (Injection Output 6).
Pin 16 Brown/Black, SPARK E (Ignition Output 5).
Pin 17 Violet/Cream, INJ E (Injection Output 5).
Pin 18 Yellow/Red, D15 PM5.