New Beetle GLS L4-2.0L (AVH) (2001)
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Remember the intake air temperature value.
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Spray the sensor (arrow) with commercially available chilling spray and watch the temperature value. The temperature must decrease.
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End diagnosis and switch ignition off.
If the intake air temperature does not drop:
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Replace Mass Air Flow (MAF) Sensor -G70- with Intake Air Temperature (IAT) Sensor -G42-:
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Vehicles with engine code AEG, AVH, AZG, item 3,
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Vehicles with engine code BDC, item 1.
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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. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
Continuation of test if indication is approx.. -40 degrees C:
Vehicles with engine code AEG, AVH, AZG
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Disconnect 5-pin connector from Mass Air Flow (MAF) Sensor -G70- with Intake Air Temperature (IAT) Sensor -G42- (arrow).
Vehicles with engine code BDC
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Disconnect 5-pin connector from Mass Air Flow (MAF) Sensor -G70- with Intake Air Temperature (IAT) Sensor -G42- (arrow).