Volkswagen Golf/Jetta 2 manual

Airflow meter - testing
Fuel and exhaust systems - Digifant fuel injection / Airflow meter - testing


1 Disconnect the wiring plug from the airflow meter (see illustration).

9.1 Airflow meter components
9.1 Airflow meter components

1 Air cleaner element 2 Cover
3 Bolt
4 Seal
5 Airflow meter
6 Connector
7 Tamperproof plug
8 Mixture (CO content) adjustment screw 9 O-ring
10 Clip
11 Air inlet hose
12 Plate
13 Seal
14 Retaining ring
15 Air cleaner body
16 Rubber washer
17 Temperature regulator 18 Warm air hose

2 Connect an ohmmeter between terminals 1 and 4 and check that the resistance of the inlet air temperature sender is as shown (see illustration) according to the ambient air temperature.

9.2 Inlet air temperature sender resistance graph
9.2 Inlet air temperature sender resistance graph

3 Connect the ohmmeter between terminals 3 and 4 and check that the resistance of the potentiometer is between 0.5 and 1.0 K ohms.

4 Connect the ohmmeter between terminals 2 and 3 and check that the resistance fluctuates as the airflow meter plate is moved.


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