Code : P2270
Make : TOYOTA
Description : P2270 TOYOTA Oxygen Sensor Stuck Lean Bank 1 Sensor 2
Possible causes :
– Faulty Oxygen Sensor Bank 1 Sensor 2
– Oxygen Sensor Bank 1 Sensor 2 harness is open or shorted
– Oxygen Sensor Bank 1 Sensor 2 circuit poor electrical connection
– Lean air/fuel ratio-Low fuel pressure, vacuum leak
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.
