198003719 - 1064BI FUEL SYSTEM RETURN PRESSURE CHECK
| STEP | CHECK TO BE PERFORMED | REMEDIAL ACTION IF THE CHECK IS NOT OK |
|---|---|---|
| 1 | Sensor power supply checkConnect to pins 1 and 2 of the pressure sensor connector in the voltmeter function using the ExaminerTurn the ignition key to the ON positionCheck that the voltage is around 5 Volts | Restore the continuity of the wiring between the engine management control unit and the pressure sensorIf 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 checkConnect the Examiner in voltmeter mode: black probe to pin 2 of the sensor and red probe to pin 3Start the engineCheck 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. |
