| 摘要 |
A secondary air fan for an internal combustion engine includes a housing in which a motor unit drives a pump unit, the housing having an air inlet channel and an air outlet channel, an air mass sensor, being arranged in one of the channels to control the motor unit by an electronic unit. The air mass sensor is connected to the electronic unit which is attached to the housing and/or to the air inlet channel or to the air outlet channel.
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