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Re: 96 Caprice 4.3L No Start Theory
Posted to Technical Discussion Forum on 5/22/1998

Bill,

This may not answer your question, but here is some information on the photo-optic distributor.

Photo-Optic Distributor (sensors)

The Photo-Optic Distributor has a DC Digital Signal (Square Wave)

1. A Low Resolution Signal Input = Cylinder I.D. ... Login to read more.