This is basically how the system works: the Secondary Air Injection pump is used on vehicles to help lower tailpipe emissions on start-up.

Subaru is recalling 100,127 cars in the United States for secondary air-injection pumps that can catch fire, according to filings with the National Highway Traffic Safety Administration. Also ...

The set-up in question is called the 'secondary air injection' system, which pumps air into the engine's exhaust system when it is cold.

Subaru says in government documents that a relay controlling a secondary air injection pump can fail, causing the pump to run continuously. If it overheats, it can melt and catch fire.

Vapor injection heat pump systems represent a significant advancement in heating technology by integrating a secondary injection of refrigerant vapor into the compressor. This process enhances the ...

One of the more frustrating things with post-OBD-II cars (models built after 1996 that have the standard trapezoidal OBD-II diagnostic port) is when the “check engine” light (CEL) comes on, you plug ...

This is basically how the system works: the Secondary Air Injection pump is used on vehicles to help lower tailpipe emissions on start-up.