Technical information

AUTOTRONIC CONTROLS CORPORATION 1490 HENRY BRENNAN, EL PASO, TEXAS 79936 (915) 857-5200 FAX (915) 857-3344
www.msdignition.com email: msdtech@msdignition.com
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MSD TACH ADAPTER PN 8912
The PN 8912 is a dual channel adapter that will only be used with MSD line of DIS-2 or DIS-4 Ignition (the DIS-4
requires two). The Adapter has six wires that need to be connected and the DIS Ignition already have the matching
connectors.
Black:
Red:
Brown/White:
Brown/Green:
White:
Green:
Connects to Ground.
Connects to 12 volts (ignition).
Connects to the White wire going to the Coils and ECU.
Connects to the Green wire going to the Coils and ECU.
Connects to the White wire going to the MSD DIS Ignition.
Connects to the Green wire going to the MSD DIS Ignition.
General Wiring
TM
TO MSD
DIS-2
BROWN/WHITE
TO COILS
AND ECU
BLACK
WHITE
BROWN/GREEN
GREEN
RED
RED
GREEN
GREEN
WHITE
WHITE
MSD TACH ADAPTER PN 8912 TO DIS-4
MSD TACH ADAPTER PN 8912 TO DIS-2
Note: Six Cylinder applications must
ground the violet wire.