If you mean the secondary air injection system used in automotive applications: depending on the year, make, and model of the vehicle, the AIR pump can be located on either the belt drive or as a separate, electronic, pump somewhere in the engine compartment.
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.
Some GM cars have this code but no secondary air, has it been worked on?
Under the radiator, passenger side.
The secondary air system pump is on the driver side below the battery .
Right next to the windshield washer reservoir.
It does not have secondary air injection.
Secondary air injection pump is located right on top/front of your engine. Its a black pump which should have a aluminum bracket holding it on. Just one inverted torx bolt and the electrical connection
maxillay central injection
The secondary air pump is located at the front of the engine, between the engine and the radiator, you can see it from below the car. To get to it you will have to pull the front of the car partially off.
what causes air injection system pressure to be stucked in cars
on the passenger front fender between the battery and fender
Directly in front of the driver's side front tire inside fender well.