LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volkswagen >> 1984 >> Vanagon Base, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Fuel Injection System - DIGIJET >> Testing >> Fuel Injectors >> Leak Test
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Leak Test

Remove injectors from engine. Leave fuel lines connected but unplug electrical connectors. Turn ignition on for about 5 seconds. No more than 2 drops should leak from each injector in 1 minute. Replace sealing rings when installing injectors.

CAUTION: To prevent control unit damage when checking injector voltage supply, do not short-circuit connector contacts.