Vauxhall Workshop Service and Repair Manuals

Trouble-shooting:                                 Nominal Value:                       Cause of Fault:

(If nominal value is not attained)

· Ignition ON,                                                        Idle speed OK                                    · Engine does not start:

Engine at idle speed                                                                                                         - Interruption in the reference line from

control unit to distributor

- or short circuit to ground

- Interruption in the injection valve line from

control unit to nozzle

- or short circuit to ground

- Injector defective

· Engine starts:

- Data connection to TECH 1 defective:

see Table 1

- Control unit defective

· Measure resistance value                                 Approx. 1.4 W to 1.8 W                      · Nozzle defective

of injection valve.

Engine cold:

Multimeter measuring range (200 W)

· Measure resistance value                                 The currently measured                   · Nozzle defective

of injection valve.                                               value must be approx. 0.2 V

Engine warm:                                                      greater than the value

For this:                                                                 measured with cold engine.

Park vehicle at operating

temperature and wait approx.

5 min.

Multimeter measuring range (200 W)