New Beetle GL L4-2.0L (AZG) (2002)
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VAG 1526 multimeter or VAG 1715 multimeter
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VAG 1527 voltage test lamp
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VAG 1594 connector test kit
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Wiring diagram
Test 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, for example, 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. See: Computers and Control Systems/Engine Speed Sensor/Testing and Inspection
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Ignition switched off.
Test sequence
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Remove upper part of intake manifold.
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Intake manifold, upper part, disassembling and assembling:
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Vehicles with engine code AEG, AVH, AZG.
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Vehicles with engine code BDC.
NOTE: Seal the intake channels in lower part of intake manifold using a clean rag.
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Disconnect fuel injector connectors.
Resistance values of fuel injectors, checking
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Test resistance of fuel injectors between terminals. Specified value: 14...18 Ohms
NOTE: Resistance value is valid at approx.. 20 degrees C. At higher temperatures, resistance value increases.
If specified value is not obtained:
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Replace faulty fuel injector:
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Vehicles with engine code AEG, AVH, AZG, item 7.
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Vehicles with engine code BDC, item 9.