AWE Tuning 2000 Audi S4. RS4 K04 Fueling Kit Update 2.0. Update 2.0 for your AWE Tuning RSK04 fueling kit applies to 2000 S4s.
Remove the decorative cover on top of the airbox to expose
the Mass Air Flow sensor (MAF).
This service can be performed with the sensor housing in place on the car. Take care not to drop any items into the housing opening when swapping sensors.
Figure 1
Step 3:
Unclip the sensor harness plug from the sensor, and pull back the rubber boot.
Note the wire colors:
Pin 1: no wire
Pin 2: Green/yellow stripe
Pin 3: Black/green stripe
Pin 4: Purple/gray stripe
Pin 5: Green
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