Common Oxygen Sensor Conditions

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Identify Oxygen Sensor Damage and Contamination

New Oxygen Sensor with no defects.
Undamaged Oxygen Sensor

Oxygen Sensor damaged through contamination by antifreeze.
Oxygen Sensor Damaged by Antifreeze

Oxygen Sensor that has been damaged by a rich fuel mixture.
Oxygen Sensor Damaged by Fuel Mixture

Oxygen Sensor that has been damaged by silicone poisoning.
Oxygen Sensor Damaged by Silicone Poisoning

Oxygen sensor that has been damaged by lead poisoning.
Oxygen sensor damaged by lead poisoning

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