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The ignition points don't do anything directly to the FI system.
There is a pair of points sometimes refered to as contact trigger points, see picture below.
The trigger points assembly is installed in a slot in the side of a D-jet distributor. The slot is below the breaker plate that holds the ignition points. The trigger points are opened by a single lobe on the distributor shaft below the breaker plate and each set of points is a switch that sends a ground signal to the computer that is used to trigger a pair of fuel injectors.

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Eric Hi Performance Automotive Service (formerly OVO or Old Volvos Only) Torrance, CA 90502 hiperformanceautoservice.com or oldvolvosonly.com
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