INSTALLATIONINSTRUCTIONS

GMR PICKUP INSTALLATION

The MSD GMR pickup can be used with inductive or capacitive ignition types to provide an rpm signal of

30% duration when the ignition coil fires. Two washers are provided with the pickup and must be installed

in one of two positions depending on the type of ignition driving the coil.

Note: For late model applications, it is recommended to have a wiring schematic of the vehicle’s ignition

system.

BLACK GROUND

GMR PICKUP

RED

GREEN

SWITCHED

12 VOLT

SIGNAL

OUTPUT

GMR PICKUP

NOTE: The brass screw must be used for proper operation.

PRIMARY COIL (+) WIRE OR

DIESEL INJECTOR 12 VOLT WIRE

WASHER MUST BE ON TOP OF METAL TAB

METAL TAB

COIL

HARNESS

IGNITION

COIL

IGNITION

COIL

IGNITION

COIL

IGNITION

COIL

COIL (+)

12 VOLTS

COIL (-)

TRIGGER 4

COIL (-)

TRIGGER 3

COIL (-)

TRIGGER 2

COIL (-)

TRIGGER 1

GMR PICKUP

GREEN

SHIFT LIGHT

BLACK GROUND

UP

MODE

DOWN

Note: The shift light must be programmed for 1-cylinder

operation.

Figure 3 Installation on an Inductive Coil-Per-Cylinder Ignition System.

Figure 2 Installing with an MSD Ignition.

MAGNETIC

CONNECTOR

NOT USED

TO BATTERY

WHITE

BLACK

ORANGE

WHITE

BLACK

ORANGE

RED

TO BATTERY

BLACK

TRIGGER INPUT

RED

RED

SWITCHED

12 VOLT

GREEN

BLACK GROUND

UP

MODE

DOWN

COIL

OPTIONAL 2.2K RESISTOR

FOR NOISE FILTER

Note: If the rpm display

shows interference,

install the supplied

2.2K ohm resis-

tor in-line on the

Green wire.