1

Sensor power supply check

Connect to pins 1 and 2 of the pressure sensor connector in the voltmeter function using the Examiner

Turn the ignition key to the ON position

Check that the voltage is around 5 Volts

Restore the continuity of the wiring between the engine management control unit and the pressure sensor.

If the supply is interrupted at the engine control unit outlet, replace the engine management control unit

   Op. 1056B82 INJECTION/IGNITION SYSTEM E.C.U. (ONE) - R + R

2

Pressure signal check

Connect the Examiner in voltmeter mode: black probe to pin 2 of the sensor and red probe to pin 3

Start the engine

Check for the presence of a voltage signal of around 1.5 Volt that increases to around 4.5 Volt when accelerating

Replace the supercharging sensor

   Op. 1056B44 AIR PRESSURE SENSOR - R + R