ford Workshop Repair Guides

Ford Workshop Service and Repair Manuals

Relays and Modules - Ignition System > < Octane Adjust Shorting Bar - Revised Procedures|Page 3677
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Ignition Timing Connector: Description and Operation

In-line Connector With Shorting Bar

PURPOSE      
The octane adjustment switch is used to retard the ignition timing three to four degrees.

OPERATION     
When the switch jumper is INSTALLED, the timing is normal.  With the jumper "REMOVED", the timing is retarded. This is done to allow for
optimum spark advance for effective combustion of the air/fuel mixture.

Relays and Modules - Ignition System > < Octane Adjust Shorting Bar - Revised Procedures|Page 3677