Typical location of the evaporative emission control system purge valve.
Connection of the USB Autoscope IV to the valve control wire.
Setting the USB Autoscope IV to the pulse width testing mode.
Output voltage waveform from the control circuit of the evaporative emission control system purge valve on Toyota Avensis 1.8i 2007, recorded while the engine was at idle.
The USB Oscilloscope program is required for waveform playback. Get the latest USB Oscilloscope program here.
EVAP purge valve - Toyota Avensis 1.8i 2007
EVAP purge valve - Mitsubishi Lancer 1.6 2005