Touareg V8-4.2L (BHX) (2004)
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Disconnect fuel supply line - 1 - from fuel distributor.
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Place hose in a measuring container - 2 - of at least 1000 cm3.
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Measuring container must be emptied before measurement.
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Operate remote control
10 seconds:a minimal delivery quantity of
800 cm3/10 seconds must be obtained.
If the minimal delivery quantity is not obtained during one of the tests:
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Check fuel lines for possible restrictions (kinks) or clogging.
If the lines are OK:
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Replace filter element in fuel filter.
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Erase DTC memory of Engine Control Module (ECM) , Diagnostic mode 4: Reset/erase diagnostic data.
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Generate readiness code.
Delivery rate has been obtained, but malfunctions are still suspected in the fuel supply (e.g. sporadic loss of fuel supply):
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Check current pick-up of Fuel Pumps (FP)
Checking current pick-up of Fuel Pumps (FP)