Passat 4Motion V6-2.8L (ATQ) (2005)
Fuel Injector: Testing and Inspection
Fuel Injectors, Checking
Fuel Injectors, Checking
Recommended special tools and equipment
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V.A.G 1526 multimeter or V.A.G 1715 multimeter
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V.A.G 1527 voltage test lamp
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V.A.G 1594 connector test kit
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Wiring diagram
Test requirements
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The respective fuses of Cylinder 1 Fuel Injector -N30- to Cylinder 4 Fuel Injector -N33-, Cylinder 5 Fuel Injector -N83-, Cylinder 6 Fuel Injector
-N84- must be OK
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Fuel Pump (FP) Relay -J17- must be OK, check:
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Battery voltage must be at least 11.5 volts.
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All electrical consumers such as, lights and rear window defroster must be switched off.
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Parking brake must be engaged or else daylight driving lights will be switched on.
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For vehicles with automatic transmission, selector lever must be in position -P- or -N-
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If vehicle is equipped with an A/C system, it must be switched off.
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Ground (GND) connections between engine and chassis must be OK.
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Engine speed (RPM) sensor must be OK, checking.
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Ignition switched off.
Test sequence
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Pull connectors -1- off connection -2- of all fuel injectors.
Checking resistances of fuel injectors