Pressure Sensor - PIAGGIO 500 cc Service Manual

Fuel injection

PRESSURE SENSOR

This sensor does not have an installation, in that it is inserted directly into the control unit.
The sensor allows the control unit to optimize engine performance based on altimeter variations.
To control the sensor proceed as follows.
Connect the diagnosis tester 020460Y.
See page 9-17
Select the "errors" function from the menu.
Check if anomalies concerning the pressure sensor
have been registered.
YES
Proceed with replacement of the fuel injection control unit.
NO
Select the "parameters" function from the menu.
Check that the mm/Hg pressure indication
corresponds to that of another vehicle or to an
external barometer.
Max error: ±20 mmHg
YES NO
The ambient pressure
Replace the fuel injection
signal is correct.
control unit.
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