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58
3.2.3
Air Flow Meter
Air flow meters generally have vane type, hot wire type, digital type, etc.; among them: vane type and hot wire type
are both analog output, and the output voltage is proportional to the air flow, generally 0.5V~4.5V, but the non-
linear ratio, It needs to be corrected in the ECM; the general output voltage is about 1V at idling speed, and the
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