A4 (B6 Platform) Discussion Discussion forum for the B6 Audi A4 produced from 2002-2005

Does anyone know what the Secondary Air Injection is?

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Old 02-04-2003, 06:55 PM
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Default Does anyone know what the Secondary Air Injection is?

I was going through the Readiness section in Controller 01 - Engine earlier today after getting my car chipped. Of the eight sections, seven showed "Passed" and one (Secondary Air Injection) showed "Failed or Incomplete."

What does this mean?
Old 02-04-2003, 06:56 PM
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Default Secondary Air pump runs

when the car is cold to heat up quicker, I believe it's only engaged if the temperature is below a certain level.
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