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 Reply

Tiny
JDL
  • EXPERT
  • 16,281 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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