Component Inspection

Engine Control
P0103 Mass or Volume Air Flow 'A' Circuit High Input - Component Inspection

Component Inspection

Visual Inspection
1. Check that MAFS is damaged, contaminated or deformed.
2. Check that air cleaner is clogged.
3. Has a problem been found?





Check MAFS
1. IG "OFF" and install a GDS.
2. ENG "ON" and monitor "MAFS" data on the service data.
3. Monitor signal waveform at signal terminal of MAFS with GDS.

Specification : Signal waveform will be displayed as follows. Frequency will be increased during acceleration. (Be aware that the signal of MAFS is not voltage display but frequency display.)

4. Are both service data and signal waveform dispayed correctly?