Signal Wave Form

As much as possible, MAFS signal should be compared with the TPS signal. And check whether MAFS and TPS signals are increased at the same time when accelerated. During acceleration, the MAFS output voltage increases; during deceleration, the MAFS output voltage decreases. The below left illustration is signal waveform at idle and the below right illustration during acceleration and deceleration.

Fig 1: DTC P0101 Signal Wave Form

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