SUPERCHARGING PRESSURE TEST

Check 1064BA

1.9 JTD 16V

Fit the connector 1.870.752.000 placing it between the turbocharging sensor and intake chamber.

Connect the pressure transducer to the tool.

Place the diagnostic instrument in the interior compartment and connect it.

Select the ''pressure gauge'' instrument on the diagnostic instrument, 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 2500 rpm in 4th gear.

Start graphic acquisition by pressing ''start'' on the diagnostic instrument, and after about 2 seconds press the accelerator pedal 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 1900 - 2080 mbar (1444-1581 mmHg) corresponding to a turbocharging value of 900-1080 mbar.

On a fast non-urban journey, drive the car at 2500 rpm in 3th gear.

Start graphic acquisition by pressing ''start'' on the diagnostic instrument, and after about 2 seconds press the accelerator pedal 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 1900 - 2080 mbar (1444-1581 mmHg) corresponding to a turbocharging value of 900-1080 mbar.