Disconnect the pressure sensor from the
inlet manifold.Connect tool no. 1.870.752.000 to the inlet
manifold.Reconnect the pressure sensor to the other
end of the tool n° 1.870.752.000 Connect the pressure transducer to the tool.Position the Examiner/Examiner Plus diagnostic equipment
in the passenger compartment and connect it.Select the 'pressure gauge' instrument on
the Examiner/Examiner Plus and set it to acquire data in 'inlet
pressure' mode with full scale of 2000 mmHg and time selection 10
seconds.Go out onto the road (observing the legal
speed limits) and carry out the following test.On a stretch of motorway, drive the car
at 2000 rpm in 4th gear.Start graphic acquisition by pressing 'start'
on the diagnostic instrument, and after about 2 seconds press the
accelerator fully until 3500 rpm is reached.After reaching this speed, release the accelerator pedal
fully.Display the resulting graph and in the pressure constant
part, excluding the initial peak, the reading should be 2200 mbar
(about 1650 mmHg) corresponding to a turbocharging value of 1200 mbar.On a fast non-urban journey, drive the car
at 2000 rpm in 3rd gear.Start graphic acquisition by pressing 'start'
on the diagnostic instrument, and after about 2 seconds press the
accelerator fully until 3500 rpm is reached.After reaching this speed, release the accelerator pedal
fully.Display the resulting graph and in the pressure constant
part, excluding the initial peak, the reading should be abpit 2200
mbar (bout 1650 mmHg) corresponding to a turbocharging value of 1200
mbar.