WHAT IS A SECONDARY AIR INJECTION SYSTEM ...

  • Tiny
  • Anonymous
  • 2001 Chevrolet Blazer
  • 136,000 miles

What is a secondary air injection system malfunction?

Tuesday, April 9th, 2013 AT 8:03 PM

1 Answer

  • Tiny
  • JDL
  • Expert
  • 16,290 posts

The secondary air injection system helps reduce exhaust emissions. The system forces fresh filtered air into the exhaust stream in order to accelerate catalyst operation.

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Tuesday, April 9th, 2013 AT 8:23 PM

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