The Ford DIS system utilizes both the crankshaft position sensor and a camshaft synchronizer to control engine timing. Both of these sensors employ a “Hall Effect” type of signal generator which utilizes the “vane-switch” design.
On all DIS applications the crankshaft position sensor generaties a “PIP” Profile Ignition Pickup signal from its location on the crank. The CMP sensor assembly is driven by a synchronized shaft installed where a distributer previously resided.
All DIS systems employ a seperate Ignition Control Module or DIS module which carries out the actual firing of the coils as directed by the PCM.
The Ford EDIS system only uses the crankshaft sensor for ignition. The camshaft position sensor is needed for sequential fuel injection. (SEFI)