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Home >> Volkswagen >> 2001 >> Jetta GL, 2.0 S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 78 (1.9L - Fuel Injection Glow Plug, Engine Code ALH, From My 2002 (A4 Platform)) >> 23 Diesel Fuel Injection >> Diesel fuel injection components and functions, checking >> Mass Air Flow (MAF) sensor G70 , checking >> Notes

Mass Air Flow (MAF) sensor G70 , checking: Notes

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The Mass Air Flow (MAF) sensor G70 signal is used by the ECM to calculate the quantity injected and to control the required exhaust gas recirculation. The smaller the signal from Mass Air Flow (MAF) sensor G70 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 

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