System Inspection

System Inspection

1. Visual Inspection
(1) Check the air hose between MAFS and throttle body is torn or installation.
(2) Check deforamtion, crack or installation of throttle valve (body)
(3) Has a problem been found ?





2. 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 terminal 1 of MAFS with scantool.

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


(4) Are both service data and signal wave form dispayed correctly ?