• Loss of signal both sensors during operation of the
engine will cause fuel injection to be terminated
and the engine will stop.
The primary sensor and the secondary sensor are
interchangeable components. If a sensor is suspect,
the sensors can be exchanged in order to eliminate a
fault. If a secondary sensor is suspect and a
replacement secondary sensor is not available, then
the primary sensor and the secondary sensor can be
exchanged. This exchange will allow testing to
determine if the secondary sensor is faulty.
Illustration 155 g03812318
Schematic for the speed/timing sensors
Illustration 156 g03812322
Pin locations for the speed/timing sensor on the P2
connector
(18) Supply for the speed/timing sensor (8 VDC)
(27) Signal for the primary speed/timing sensor
(28) Signal for the secondary speed/timing sensor
Complete the procedure in the order in which the
steps are listed.
434 UENR4469-36
Circuit Tests
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
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