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Air Mass Meter / Hot-film Air Mass Meter

Quick and precise measurement of the actual air flow for a reliable and accurate mixture formation. The air mass meter is located between the air filter and throttle valve, and measures the air mass flow through the induction manifold. An electrically heated, thin platinum wire film resistance with a temperature sensor is inserted into the induction manifold air flow. The ECU receives a voltage signal which is proportional to the air mass flow, from which the control unit calculates the necessary quantity of fuel.

Bosch air mass meters are characterized by:

Compact design

Low weight

Fast response time

Low power input

Return flow detection

Features / Benefits

  • Model-specific application leads to best engine characteristics, low fuel consumption, and low pollutant emissions

  • Latest hybrid technology / microelectronic, therefore high accuracy on air mass measurement

  • Precise sensing and evaluation of signals

  • Optimum driving response

  • Response within a short time span

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