Does a Faulty Secondary Air Pump Increase Fuel Consumption?

[DelDiana]

If the secondary air pump is damaged, it may increase fuel consumption, so it is recommended to replace it with a new one. Here is the relevant information: Symptoms of damage: The primary symptom of a faulty secondary air pump is the illumination of the check engine light, followed by the appearance of a fault code indicating "Incorrect Secondary Air Flow." These symptoms can also be caused by a broken secondary air pipe, a ruptured vacuum tube, a damaged secondary injection valve, incorrectly connected positive wires, or a blocked exhaust channel in the cylinder head. Function: The secondary air pump's role is to supply air to the catalytic converter when the engine is cold. This allows the exhaust gases to mix with the oxygen in the air for secondary combustion, thereby raising the temperature of the catalytic converter. This helps the catalytic converter reach its optimal operating temperature more quickly, reducing the emission of harmful substances in the exhaust and serving an environmental protection purpose.