Vauxhall Astra Workshop Service & Repair Manuals - Online Guides

Note:

8 to 12 °CA (nominal values) are the values programmed in the control unit. This does not mean that this pre-ignition is actually present. Check with the Opel Tester whether the programmed and actual values match.

IMPORTANT:       Basic adjustment of the distributor (high voltage distribution only)can only be carried out statically (C 24 NE, C 30 NE, C 30 SE).

For this

· Match the pin with the ball or coloured mark on the flywheel by turning the crankshaft.

· Turn the distributor housing so that the markings on the distributor arm aligns with the marks on the distributor housing.

All other engines have bolted-down high voltage distribution.

Trouble-shooting:                                      Nominal Value:                       Cause of Fault:

(If nominal value is not attained)

If basic adjustment is OK                   · Idle speed too high

(s. test step 14)

· Load signal too high

(s. test step 10)

· Control unit defective