Crankshaft Position Sensor: Description and Operation

Ignition System Circuit Diagram:

PURPOSE
Provides PCME #1 cylinder TDC information (G signal) and crank angle signal at 90° intervals (Ne signal). Signals used by PCME in calculations for ignition and injection timing.

LOCATION
In distributor.

OPERATION
As reluctor projections pass pick-up, magnetic fields are interrupted. Pulses generated are sent to PCME. G signal consists of 1 pulse per distributor revolution (#1 cylinder TDC). Ne signal consists of 4 pulses per distributor revolution (crank angle signal every 90° of rotation).

CONSTRUCTION
Stationary magnetic pick-ups and reluctors turned by distributor shaft. G signal reluctor has 1 projection and Ne1 signal reluctor has 4.