New Beetle L4-2.0L (AVH) (2005)
Fuel Injector: Testing and Inspection
Fuel Injectors, Checking
Fuel Injectors, Checking
Recommended special tools and equipment
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VA.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
Requirements
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The respective fuses of fuel injectors (-N30- to -N33-) 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. See: Computers and Control Systems/Engine Speed Sensor/Testing and Inspection
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Ignition switched off.
Work sequence
Observe safety precautions.
Observe rules for cleanliness.
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Remove upper part of intake manifold.
Intake manifold, upper part, disassembling and assembling.
NOTE: Seal the intake channels in lower section of intake manifold using a clean rag.
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Disconnect fuel injector connectors.
Resistance values of fuel injectors, checking