Touareg V8-4.2L (BHX) (2004)
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Empty measuring container before making measurement.
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Operate remote control for 15 seconds again. At least 3 fuel per 15 seconds must be delivered.
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Also test both fuel delivery units as follows:
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Connect adapter (V.A.G 1348/3-3) to fuel pump relay connection for left and right fuel delivery units.
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Empty measuring container before making measurement.
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Operate remote control for 10 seconds: At least 800 cm 3 fuel per 10 seconds must be delivered.
If minimum supply quantity is not achieved during one of the tests:
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Check fuel lines for possible restrictions (kinks) or blockages.
If lines are OK:
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Replace fuel filter:
If delivery rate has been attained but nevertheless you suspect a fuel supply system malfunction (e.g. intermittent failure of fuel supply system):
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Check current consumption of fuel pumps.
Fuel Pumps, Checking Current Draw
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Check current draw of each individual Fuel Pump (FP) as follows:
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Reconnect all disconnected fuel lines.
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Cut open carpet from point - A - to point - B - in pre-cut area - arrows -.