Checking For Oxygen Sensor Switching

Tests 703 - 708:

Tests 709 - 712:

Tests 713 - 714:

SYMPTOM
* CHECKING FOR OXYGEN SENSOR SWITCHING

POSSIBLE CAUSES
- Oxygen sensor < 0.10 volt defective
- Oxygen sensor signal circuit short to ground
- Air filter or inlet ducts restrictions
- Fuel pump lines, or injectors defective
- Engine vacuum abnormal