A6 Sedan V6-2.8L (AHA) (1998)
Secondary Air Injection Solenoid Valve: Testing and Inspection
Electrical Test Via Multimeter (Fluke 83 or Equivalent)
Electrical test
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Disconnect harness connector for AIR solenoid valve -N112-.
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Select resistance range on multimeter (Fluke 83 or equivalent) and measure between terminals of valve.
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Specified value: 25 - 35 Ohms
If specified value is not attained:
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Replace AIR solenoid valve -N112-.