It injects/blows air into your exhaust near or in the cylinder head's exhaust port. It also injects air into the catalytic converter. This is done to give the unburnt hydrocarbons in the exhaust gases some oxygen to continue burning in the exhaust system/catalytic converter in order to reduce emissions.
http://en.wikipedia.org/wiki/Air_injection_reactor
what causes air injection system pressure to be stucked in cars
There are several ways to fix the secondary air injection system in a 2005 Chevrolet trailblazer. The most common fix is; changing the air filter.
Need to know what your question is.
The secondary air system pump is on the driver side below the battery .
2005 sequoia, code P1445 air injections system switching valve stuck closed..how major is this
Air injection system performance.
Trouble code P0410 means:Secondary air injection system malfunction
Check your connections and the air injection check valves. -Jager
Trouble code P1416 means:Secondary air injection (AIR) system
the secondary air injection system on a 200 Chevy s10 is right by the radiator on the passenger side of the engine bay. if you look down there are 4 bolts bolting it to the frame of the vehicle.
the secondary air injection system is the smog pump and valve. the valve is located on the exhaust manifold with 2 hoses leading to the smog pump which is located under the drivers side floor. it is electric.