The Diverter Valve is part of which emissions system in the Smog Check?

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Prepare for the California BAR Smog Technician Test. Review key topics with flashcards and multiple choice questions, each question includes hints and explanations. Get ready to ace your exam!

Multiple Choice

The Diverter Valve is part of which emissions system in the Smog Check?

Explanation:
The Diverter Valve belongs to the Air Injection System (AIS). This system pumps fresh air into the exhaust to help burn off leftover fuel and oxidize pollutants. The diverter valve is a vacuum- or electronically controlled one-way valve that directs that injected air into the exhaust manifold when the AIS is active. By routing air into the exhaust, it lowers hydrocarbon and carbon monoxide emissions, which is why it’s tested as part of the AIS during Smog Check. It isn’t part of EVAP (which handles fuel vapors), EFI (fuel delivery electronics), or IGNITION (spark and timing).

The Diverter Valve belongs to the Air Injection System (AIS). This system pumps fresh air into the exhaust to help burn off leftover fuel and oxidize pollutants. The diverter valve is a vacuum- or electronically controlled one-way valve that directs that injected air into the exhaust manifold when the AIS is active. By routing air into the exhaust, it lowers hydrocarbon and carbon monoxide emissions, which is why it’s tested as part of the AIS during Smog Check. It isn’t part of EVAP (which handles fuel vapors), EFI (fuel delivery electronics), or IGNITION (spark and timing).

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