SDS EM4 DB25 PINOUTS 4F Pin # Wire color/Gauge Connection # 1 Red / 20 Input + 12 Volts - ECU Power # 2 Red / 22 Output + 5 Volts to TPS # 3 Red / 22 Output + 5 Volts - Mix Knob # 4 Red / 22 Output + 5 Volts - MAP Sensor # 5 Not Used # 6 Green or White / 22 Signal input – MAP Sensor # 7 White / 20 Signal input - AT # 8 Not Used # 9 White / 20 Ignition Trig Ch 1 #10 Not Used #11 Black / 20 Ignition Trig Ch 2 #12 Green / 20 Output - 5 Volt Tach #13 Green / 20 Input - Option Activation #14 Black / 22 Ground - Mix Knob #15 Black / 22 Ground - MAP Sensor #16 Black / 20 Ground - AT Circuit #17 Black / 20 Ground - ET Circuit #18 Black / 20 Ground - ECU #19 White / 22 Signal input – Mix Knob #20 White / 20 Signal input – ET Circuit #21 White / 22 Signal input - TPS #22 Not Used #23 Not Used #24 Grey / 20 Signal input – O2 Sensor #25 Black / 22 Ground – TPS

16 15 14 13 12 11 10 9

8 7 6 5 4 3 2 1

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Fuel Pump Relay - (Orange)Fast Idle(A/C Solenoid) - (Brown)RPM Switch - (Purple)Knock Sensor - (Yellow)FAN Relay - (White)Check Engine - (Black)(Include STD relays with FPR,RPM & FAN)(Include a relay jumped to Pin 30 for FI option)(Include a 6A100 Diode with RPM option whenevercontrolling VTEC or similar devices)

72”72”72”72”72”72”

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