Preconditions for the test:
Engine idling.
No faults stored.
Engine temperature above 80 °C.
All electrical loads switched off.
Gear selector set to P/N.
Note:
To check the injection timing. The start of injection should be varied from early to late at intervals of 10 seconds.
Procedure:
Choose the injection timing function.
Check that the value of start of injection varies from 14-17° before TDC to 4-0° after TDC.