Vauxhall Workshop Service and Repair Manuals

This test step serves as a learning and checking value to understand the system better and to evaluate the system on external influences.

The injection time is composed of several elements, which have an influence on the size of the signal. If the measurement values of the following test steps deviate from the nominal values (see Quick Check), trouble-shooting is to be carried out.

Test Step                        Checking of                                               Further additional causes of trouble are:

No.:

· Lead interruptions from

01                                     BATTERY VOLTAGE                              - Fuel pump relay Ter. 87 (+) to injection valves

09                                     COOLANT TEMP.                                     - and control unit Ter. 37

05                                     MASS AIR FLOW S.

07                                     IDLE POSITION SW                             · Pressure regulator defective

08                                     FULL POSITION SW                            · Injection valves blocked up

10                                     ENGINE LOAD SIG.                              · Electromagnetic disturbances caused by

12                                     ENGINE SPEED                                         - Ignition leads (increase distance from wiring harness)

24                                     O2 SENSOR                                                 - Alternator (used carbon brushes produce sparks)

25                                     O2 INTEGRATOR

26                                     O2 BLOCK LEARN 1                             · Control unit defective

27                                     O2 BLOCK LEARN 2