Air Flow Meter Self-Cleaning Control System

Fig. 35 Air Flow Meter Self-Cleaning System:

When the engine is turned off the ECU activates the hot wire in the air flow meter. The wire reaches a temperature of approximately 1000° C (1800° F). This process cleans off any dust that may have adhered to the wire.

Fig. 36 Air Flow Meter Sel-Cleaning Operation:

Refer to the chart for self-cleaning operation.