P015B – BUICK

Code : P015B
Make : BUICK
Description : P015B BUICK Oxygen Sensor Delayed Response Lean to Rich Bank 1 Sensor 1
Possible causes :
– Faulty Heated Oxygen Bank 1 Sensor 1
– Heated Oxygen Bank 1 Sensor 1 harness is open or shorted
– Heated Oxygen Bank 1 Sensor 1 circuit poor electrical connection
– Inappropriate fuel pressure
– Faulty fuel injectors
– Intake air leaks may be faulty
– Exhaust g
Solutions :
– Carry out a Reset via CarDiag
– Choose a better quality fuel
– Check that the tank cap is securely closed
– Check the oil level and add more if it is lower than MAX
– Restart an Automatic diagnostic via CarDiag
– If the fault persists, you can check the “Possible causes” listed above : visually inspect (by yourself (tutorials to come) or by a professional) the wiring harness and the associated connectors, check for damaged components, and look for broken, bent, pushed, or corroded connector pins.

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