Checking fuel pump delivery rate - MPI engine from 05.2002 — AUDI

🧭 Before you start

Fits: Audi A2 (8Z)

• Special tools named: V.A.G 1318/17

Don't miss

• The fuel supply pipe (1) and electrical connector remain connected.
• Voltage at fuel pump with engine stationary and pump running is approx. 2 volts less than battery voltage.

🔧 Engine codes this applies to

📋 Procedure

1. Open fuse box cover on instrument panel (left-side).
2. Detach fuse S18 from fuse carrier (3rd fuse in 4th row as seen from top).
3. Connect remote controlV.A.G 1348/3 A with adapter cableV.A.G 1348/3-2 to left-hand terminal of fuse socket S18.
4. Connect clamp to vehicle battery (+).
5. Remove filler cap from fuel filler neck.

6. Fold down rear seat bench.
7. Fold back lining under rear set.
8. Turn fuel delivery unit cover in (direction of arrow) and detach.
9. ⚠ The fuel system is pressurised. Before opening the system place a cloth around the connection. Then dissipate pressure by carefully unfastening the connection. — Disconnect fuel return pipe (2) by pressing release tab. [Note: The fuel supply pipe (1) and electrical connector remain connected.]
10. Fit adapter V.A.G 1318/17-1 onto disconnected fuel return pipe and hold adapter hose in measuring container.
11. Press remote control button for 15 seconds.
12. Compare amount of fuel delivered with minimum delivery shown in diagram (cm3/15 sec.). [Note: Voltage at fuel pump with engine stationary and pump running is approx. 2 volts less than battery voltage.]

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