MSD Tech Line - MSD Powersports

www.msdpowersports.comNITRO PROGRAMMABLE IGNITION, PN 42153-Step RetardPinkVioletTanShift Light/Shifter2 Pin ConnectorRed/GreenYellow/OrangeRPM/Time SwitchPurple/BlueMap Sensor3 Pin ConnectorBrown/VioletBrown/YellowDark BrownWIRING FUNCTIONS continuedThis wire activates the first retard stage when it is applied to 12 volts. When 12 volts areremoved the retard is deactivated.This wire activates the second retard stage when it is applied to 12 volts. When 12 volts areremoved the retard is deactivated.This wire activates the third retard stage when it is applied to 12 volts. When 12 volts are removedthe retard is deactivated if ramp value = 0. Step 3 retard ramp can be activated by this wireproviding a progressive retard ramp that is programmable from .1 to 9.9 seconds.Shift Light activation wire. Connects to the Shift Light PN 7552 or PN 4360 to any air shifterwith a 3 amp or less current draw. A 3 amp fuse is in line on the Red/Green wire.RPM/Time Activation Switch. This wire will supply a ground to complete a circuit at a desiredrpm. It will handle up to 3 amps continuous.Three Pin Connector - Used for an optional external pressure sensor for turbo applications.(2 - Bar/2-29 psia - PN 23121) (3 - Bar/2-44 psia - PN 23131).2-cylinder single plug (camshaft triggered)HAND HELD PROGRAMMER ORLAPTOP WITH MSD PRO-DATA+SOFTWARE ORLAUNCH REV UNIT*NOTE: USE Y-CONNECTORFROM 4 PIN PICKUP TOPROVIDE FOR DUAL IGNITIONHOOKUP.MSD POWERSPORTS • 1490 Henry Brennan DR., El Paso, Texas 79936 • (915) 858-3365 • FAX (915) 858-3496