Mallory Ignition ACCEL DIGITAL NITROUS PROCESSOR 74186 User Manual
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NO2 ACC. HARNESS
8 Pin Connector
Wire Color
Pin A = RPM INPUT (Points)
White
Pin B = Not Used
Pin C = High Speed Retard
Yellow
Pin D = Spark Trigger RPM Out
DK Blue
Pin E = Stage 1 Enable
Grey
Pin F = Sensor Return (TPS)
Grey/Red
Pin G = RPM Switch Out
Orange
Pin H = Master Arm Input 12V+
Blue/Pink
NO2 POWER HARNESS
4 Pin Connector
Wire Color
Pin A = Ignition 12 Volt Battery+
Red
Pin B = Ground
Black
Pin C = Tach Output
LT Green
Pin D = AUX RPM Input 12V+
Green/White
NO2 STAGE 1
2 Pin Connector
Wire Color
Pin A = Stage 1 Fuel Out
White/Red
Pin B = Stage 1 NO2 Out
White/Blue
NO2 MAG PICKUP HARNESS
2 Pin Connector
Wire Color
Pin 1 = MAG + Pickup
Purple
Pin 2 = MAG – Pickup
Green
NO2 STAGE 2
2 Pin Connector
Wire Color
Pin A = Stage 2 Fuel Out
Yellow/Red
Pin B = Stage 2 NO2 Out
Yellow/Blue
HARNESS SCHEMATIC OVERVIEW CONT’D