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Fuel pressure sensor, fuel rail (653)

Fuel pressure sensor, fuel rail (653)

Location

Fuel pressure sensor, fuel rail (653)

Main task

Measures fuel pressure in the fuel rail.

Type


Piezo-resistive sensor with integrated signal converter.

Connection

Pin No. Signal type Description
1 Ground Connected to ECM pin 8(A).
2 Signal Connected to ECM pin 143A).
3 Power supply Connected to ECM pin 28(A).



Function

The sensor element is a resistance bridge in thin-film technology mounted on a steel diaphragm. When pressure is exerted to the diaphragm it will bend, creating a voltage across the resistance bridge. This voltage is then converted in an integrated signal converter.