Air Fuel (A/F) Sensor Replacement
Air Fuel (A/F) Sensor Replacement1. If needed, replace A/F Sensor(s).
a. Refer back to your notes from Check Air Fuel (A/F) Sensor Adjustment.
^ If A/F ADJ-B1 value was out of specification, replace Bank 1 A/F sensor (bank 1 is toward the rear of the vehicle).
^ If A/F ADJ-B2 value is out of specification, replace Bank 2 A/F sensor (bank 2 is toward the front of the vehicle).
NOTE:
Replace A/F sensor(s) only if value was out of specification.
b. Refer to the Service Manual for A/F Sensor replacement information.