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Secondary Air Valve

Where is the location of the secondary air valve The secondary air valve is installed between the secondary air pump and the exhaust manifold. How does the secondary air valve work? The secondary air valve is either driven by a vacuum controlled by a solenoid on-off valve, or opens in response to the pressure of the secondary air pump. The role of the secondary air valve Prevent exhaust gas, condensate, or pressure peaks in the exhaust system (such as a fire), which can cause damage to the secondary air pump. Ensure that the secondary air only enters the exhaust manifold during the cold start phase.

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