Vauxhall Workshop Service and Repair Manuals

Test

Work Order Description

Nominal Value

Check: Mechanical Function

• Check the following component for tightness and proper installation:
  Oil Dipstick
  and
  Oil Filler Cap

Test okay?

Check: Vacuum Supply System

• Check the following component for proper operation:
  Intake Air / Vacuum System
  Vacuum supply line (from engine intake manifold)
  Vacuum connections on intake manifold
  Check vacuum hoses for splits, kinks, leaks and proper connections.

Test okay?

Check: Mechanical Function

• Verify mechanical system functions/components
  Fuel-pump pressure
  Fuel Quantity
• Check function of the tank ventilation.

Note:

The desired fuel pressure is 3.8 bar

Test okay?

Result

Cause Of Fault

• Defective component:
  A84 Control Unit - Engine

or

• Mechanically defective component:
  Injection valves

Important:

Reset the concerned control unit with the diagnostic tester before replacing it. In order to do that, call up the "RESET" function from the PROGRAMMING menu of the current system on the diagnostic tester.

• Repair the concerned mechanical component