Golf L4-2.0L (AEG) (1999)
NOTE: The resistance figures are valid for approx. 20°C. At higher temperatures the resistance figures will increase.
If the specified value is not obtained
:
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Replace faulty fuel injector See "Intake Manifold Lower Section, Disassembling and Assembling", item 7. See: Service and Repair
Pay attention to the following when installing the fuel injector:
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Replace O-rings on all fuel injectors and lightly moisten with clean engine oil.
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Insert fuel injectors vertically and in the correct position into the fuel rail and secure using retaining clips.
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Fit fuel rail with fuel injectors installed and secured on intake manifold lower section and press in evenly.
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Check DTC memory. If necessary, repair any malfunctions and erase DTC memory.
See: Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes
See: Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Clearing Diagnostic Trouble Codes
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Display readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If DTC memory has been erased or the Engine Control Module (ECM) was disconnected from permanent battery (B+) voltage, the readiness code
must be generated again. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
With Generic Scan Tool
Check Fuel Injectors
Recommended special tools and equipment
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VAG1526 multimeter or VAG1715 multimeter
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VAG1527 voltage test lamp
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VAG1594 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 like, for example, lights and rear window heating 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/Testing and Inspection/Component Tests and General
Diagnostics/Engine Speed (RPM) Sensor, Checking
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Ignition switched off.
Test sequence
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Remove upper part of intake manifold, Intake manifold, upper part, disassembling and assembling.
NOTE:
Seal the intake channels in lower part of intake manifold using a clean rag.
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Disconnect fuel injector connectors.