Visual Inspection
- Visually and/or physically inspect following conditions;
- Proper installation of O2 Sensors.
- Check for corrosion on terminals.
- Check for damaged wiring.
- Fuel, Engine coolant or oil contamination.
- Check for good ground for O2 sensor.
- Has any problems been found?
Good
- Go to "Fuel System Inspection " procedure.
No Good
- Repair as necessary and go to "Verification of Repair " procedure.