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| Screw connector -V.A.G 1318/23- and adapter -V.A.G 1318/17-1A- onto K-Jetronic pressure tester -V.A.G 1318-. |
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| Fit -V.A.G 1318/17-1A- onto disconnected fuel line. |
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| Connect adapter -V.A.G 1318/11- to -V.A.G 1318-. |
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| Attach test hose -arrow- and hold end of hose in measuring container. |
Note | To measure the fuel delivery rate, pressure must first be built up in the fuel supply line; the fuel pump must then operate against this pressure during the measurement. This pressure can be built up using -V.A.G 1318- as follows: |
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| Open cut-off valve on pressure tester. |
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| Lever must point in direction of flow. |
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| Connect vehicle diagnostic tester. |
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| Switch on the ignition and select the following menu options on the vehicle diagnostic tester: |
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| Checking fuel system pressurisation pump |
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| Press Start: The fuel pump will start running. |
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| Build up pressure in fuel system by slowly closing cut-off valve on pressure tester until correct pressure has been reached. |
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| From this point on do not move position of cut-off valve. |
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| Drain measuring container. |
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| For measurement, press Start again and let fuel pump run for 15 seconds. |
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| Press Stop after 15 seconds. |
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| Check amount of fuel delivered in measuring container. |
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| Specification for minimum delivery rate: at least 250 cm3 in 15 seconds (with a supply voltage of 12 V at the fuel pump). |
| If minimum delivery rate is not achieved, check for the following causes: |
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| Fuel lines have been crushed. |
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| Fuel filter is blocked. |
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| Fuel pump is defective. |
| Assemble in reverse order. |
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WARNING
