Note. For circuit reference, see the appropriate WIRING DIAGRAMS article. For connector and terminal identification, see CONNECTOR IDENTIFICATION .
Circuit Description
Mass Air Flow (MAF) sensor measure amount of air entering engine at a given time to determine fuel delivery. MAF sensor produces a frequency signal of about 2000 Hz at idle to 8000 Hz at maximum engine load. DTC will set if MAP signal does not match expected value based on barometric pressure, throttle position and engine speed parameters.