Mass Air Flow (MAF) sensor, checking: Notes
WARNING: This page is about a different variant/trim than selected.
The MAF sensor signal is used by the ECM to calculate the quantity injected and to control the required exhaust gas recirculation. The smaller the signal from MAF sensor the smaller the quantity of fuel injected.
NOTE:
- Only gold-plated contacts must be used to repair the terminals in the connector for the MAF sensor.
Special tools, testers and auxiliary items required
- V.A.G 1551/1552 with adapter cable V.A.G 1551/3
- Test box V.A.G 1598/22 (through my 1999)
- Test box V.A.G 1598/31 (from my 2000)
- Digital multimeter US 1119 (Fluke 83 or equivalent)
- Adapter set V.A.G 1594
- Wiring diagram