Home >> Mazda >> 2008 >> 3 Mazdaspeed, 2.3 M >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System (L3 With TC) >> Pcm Inspection [L3 With TC] >> Inspection Using An Oscilloscope (Reference) >> IGT1, IGT2, IGT3, IGT4 control signals >> Oscilloscope setting