Touareg 2 V6-3.6L (BHK) (2008)
3(+) - of harness connector of Fuel Pump (FP) Control Module (J538).
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Connect terminals - 4(-) - of harness connector and - 4(-) - of Fuel Pump (FP) using an adapter cable from connector test kit.
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Switch ignition on.
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Operate Hand held remote starter (jumper) () and observe display of pressure tester while doing this.
Fuel pressure must increase up to a maximum pressure of 6 bar.
‹› When releasing control button of remote control, fuel pressure decreases to approx. 5.6 bar.
If fuel pressure is OK, check retaining pressure --> [ Residual Pressure, Checking ].
If specification is exceeded:
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Pressure relief valve in sensor flange faulty, replace sensor flange.--> Engine Mechanical, Fuel Injection and Ignition 20 Removal and Installation
If specification is not obtained:
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Check fuel lines for possible restrictions (kinks) or blockages.
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Check all fuel lines in fuel tank for leaks.
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Check fuel filter for leaks.
If no malfunction can be found:
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Replace sensor flange with pressure relief valve.--> Engine Mechanical, Fuel Injection and Ignition 20 Removal and Installation
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Repeat test.
If fuel pressure is not obtained again:
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Fuel Pump (FP) faulty, replace fuel delivery unit.--> Engine Mechanical, Fuel Injection and Ignition 20 Removal and Installation
Residual Pressure, Checking
Test conditions
‹› The Pressure Gauge remains connected --> [ Fuel Pressure, Checking ]
‹› Fuel pressure of approx. 5.6 bar is displayed on pressure tester, checking --> [ Fuel Pressure, Checking ].
‹› Hand held remote starter (jumper) is connected.
Test sequence