Secondary Air Injection System Components The secondary air injection (SAI) system components are described below: Secondary Air Injection (SAI) Pump The SAI pump is attached to a bracket at the front LH side of the engine compartment and is fixed to the bracket by three studs and nuts. The pump is electrically powered from a V battery supply via a dedicated relay and supplies approximately 35kg/hr of air when the vehicle is at idle in Neutral/Park on a start from C (68 ° F). Air is drawn into the pump from the "clean" side of the air cleaner. The air is delivered to the cylinder head on each side of the engine through a metal pipe. The foam filter in the air intake of the SAI pump provides noise reduction and protects the pump from damage due to particulate contamination. If the secondary air injection pump malfunctions, fault codes maybe stored in the ECM diagnostic memory, which can be retrieved using Testbook/T4.