A4 Quattro Wagon L4-1.8L Turbo (AWM) (2001)
Engine Speed Sensor: Testing and Inspection
Engine Speed (RPM) Sensor -G28-, Checking
Engine Speed (RPM) Sensor -G28- Checking
Special Tools and Equipment
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VAG1526A
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VAG1594A
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VAG1598/31
NOTE: The engine speed (RPM) sensor detects RPM and reference marks. The engine cannot be started without a signal from the engine speed (RPM)
sensor -G28-. If the engine speed (RPM) sensor -G28- signal fails while the engine is running, the engine will stop immediately.
Test sequence
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Before performing test, check sensor for proper installation and proper fitting.