Checking fuel delivery rate of fuel system pressurisation pump G6, engine codes CFHC, CFHE, CFHF, CLCA, CLCB, CFJA — AUDI

🧭 Before you start

Fits: VW Caddy III (2K, 2004–2015)

• Renewed: damaged line

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• Separate quick-release coupling (A) (black or with black marking) of fuel supply line.
• The fuel pump is now actuated for 30 seconds.

🔧 Engine codes this applies to

📋 Procedure

1. Separate connector (A) on supplementary fuel pump V393.
2. Separate quick-release coupling (A) (black or with black marking) of fuel supply line.
3. Connect line VAS 6550/1 of pressure tester to fuel supply line (A).
4. Feed open end of line in the measuring tank.
5. Connect Vehicle diagnosis tester and then carry out Guided function "“Checking electrical fuel pump(s)”". [Note: The fuel pump is now actuated for 30 seconds.]

6. Once fuel has ceased to flow, take delivered fuel quantity reading on measuring beaker. Specification: at least 1000 ml/30 seconds.
7. Check fuel supply line between fuel pump and engine compartment is not kinked, crushed or damaged.
8. Renew damaged line and repeat test.
9. If line is kinked, crushed or damaged, separate fuel supply line (1) on front right of fuel tank. To do this, press down release button on hose coupling.
10. Connect line VAS 6550/1 of pressure tester to fuel supply line (1).
11. Guide open end of line into a suitable container.
12. Connect vehicle diagnosis tester. Carry out "“Checking electric fuel pump(s)”" or "“Draining fuel system”", depending on software version of guided functions. [Note: The fuel pump is now actuated for 30 seconds.]
13. Once fuel has ceased to flow, take delivered fuel quantity reading on measuring beaker. Specification: at least 1000 ml/30 seconds.
14. Check voltage supply and current consumption of fuel pump.
15. Check fuel filter (see the separate procedure).

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