audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Differential Pressure Regulator > < Thermo Time Switch|Page 3091
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Cold Start Injector: Testing and Inspection
Leak Test

Fig. 24  Fuel Pump Bypass Terminal I.D.

1.

Remove fuel pump relay and connect a jumper wire between terminals 13 and 14 to presurize the fuel system, Fig. 24.

2.

Dry the end of the cold start injector with compressed air, or a clean rag.

3.

No fuel should leak from the injector for at least one minute.

4.

If the injector leaks, replace it.

Differential Pressure Regulator > < Thermo Time Switch|Page 3091