Oxygen Sensor R & I: Notes
CAUTION:
Oxygen sensor uses a permanently attached pigtail and connector. DO NOT
remove pigtail from sensor. Damage to, or removal of pigtail or connector could affect sensor operation.
CAUTION:
Oxygen sensor may be difficult to remove when engine temperature is below 120°F (50°C). To avoid damage to threads in exhaust manifold, DO NOT
use excessive force to remove sensor.