Chery T21 2014 Service Manual page 414

06 - SQR484F ENGINE MANAGEMENT SYSTEM
Air Flow Meter
Description
The air flow meter is installed on the air inlet pipe behind air filter, which is used to measure mass of air
passing through.
Operation
When there is no mass flow, the electrical axle maintains a balance. The control circuit outputs a certain
heating current to hot-wire resistance RH. When there is mass flow, the electrical axle is out of balance due to
change of RH resistance (cooling of RH resulting from surrounding air absorbing RH's heat). The current
passing through hot-wire resistance IH must increase to keep hot-wire resistance and temperature difference
of air sucked invariant and at a fixed value. Therefore, hot-wire current IH is function of air mass flow.
Removal & Installation
06
(See page 10-13)
250
06–
Chery Automobile Co., Ltd.