Purge control

Terminal connected:2P (+)-Negative battery terminal
Oscilloscope setting: 5 V/DIV (Y): 20 ms/DIV (X), DC range
Measurement condition: Idling after warm-up (no load)
NOTE:
- Purge control might not be activated depending on the engine conditions.
Fig 1: Identifying Purge Control Graph
Courtesy of MAZDA MOTORS CORP.