This function is used to temporarily shut off an injector at a time to check the injectors' function. The function should be run with the engine on. When the chosen injector is off the engine will run rough and smoke.
Test conditions:
Engine on.
Engine temperature between 85 and 100°C.
Parking brake applied.
Transmission in neutral.
Do not touch the accelerator pedal during the test.
Procedure:
Start the function.
Follow the instructions in the programme.
The function is done.
If the function fails, check the test conditions and repair any faults.