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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 the fuel pressure in the fuel rail.

Type


Piezo resistive sensor with built-in signal converter.

Connection

Pin no. Signal type Description
1

Ground

Connected to ECM pin 8(A).

2

Signal

Connected to ECM pin 43(A).

3

Power supply

Connected to ECM pin 28(A).



Function

The sensor element is a thin film resitor bridge on a steel diaphragm. When the diaphragm is subjected to pressure, it flexes creating a potential difference across the resistor bridge. This voltage is then converted in the integrated signal converter.