Component Inspection

Component Inspection

Visual Inspection
1. Check for damage or contamination to the MAF.
2. Check for restriction in the air filter.
3. Has a problem been found ?





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

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).









Fig.1) Normal waveform of MAFS at idle. (600 rpm & 11kg/h)
Fig.2) Normal waveform of MAFS at acceleration. (2080 rpm & 34kg/h)
4. Are both service data and signal waveform dispayed correctly ?