High-pressure test


The high-pressure test increases the fuel pressure to 1600 bar and then lowers the pressure back to 600 bar four times. The pressure build-up time and pressure reduction time are measured and compiled to a result in milliseconds. Shown results are compared to tables for every engine type in service documents from the manufacturer, to determine if there is any fault. Make sure that the exhausts can be ventilated out from the workshop or run the test outdoors.

The test can only be run if the engine speed sensor, coolant temperature sensor, and rail pressure sensor are free from faults.

Test conditions:

Procedure:

  1. Start the function.

  2. Follow the instructions in the program.

  3. The function is done.

    • If the function fails, check the test conditions and repair any faults.