MSD 8734 Launch Master for Modular Ford Engines Installation - Manual (Page 2)

2 INSTALLATION INSTRUCTIONS
M S D
• W W W . M S D P E R F O R M A N C E . C O M • ( 9 1 5 ) 8 5 7 - 5 2 0 0 • F A X ( 9 1 5 ) 8 5 7 - 3 3 4 4
1. Connect the 3-pin harness to the 2-step and connect the Black wire to the good engine or chassis
ground.
2. Disconnect the 2-pin connectors from each of the eight ignition coils.
3. Connect all eight of the 2-pin male connectors from the MSD harness into the factory coil connectors.
4. Plug the 8-pin connector with the single Red wire from the 2-Step to the connector with Black wires.
5. Turn the key to the On position - do NOT start the engine. Look at the LED on the 2-Step:
LED On - This confirms that the wiring is correct and you can move to step 6 (Figure 1).
LED Off - The wiring is different for this application and needs to be changed. Turn the key Off, plug the
8-pin connector with the eight Gray wires into the connector with the single Red wire (Figure 2).
6. Connect the 8-pin harness with the tan wires to the remaining connector on the harness.
7. Connect all eight of the female 2-pin connectors from the MSD harness into the factory coils.
GROUND
ACTIVATION
WIRES
WHITE BLUE
BLUE
ACTIVATES
WITH 12 VOLTS
OR GROUND
TAN
RED
GRAY
BLACK
STEP 4
STEP 3
STEP 2
Figure 1 Wiring the 2-Step Launch Control.