P0133 – SCION

Code : P0133
Make : SCION
Description : P0133 SCION Heated Oxygen Sensor Circuit Slow Response Bank 1 Sensor 1
Possible causes :
– Open or short in HO2 sensor (bank 1 sensor 1) circuit
– HO2 sensor (bank 1 sensor 1)
– HO2 sensor heater (bank 1 sensor 1)
– EFI relay
– Air induction system
– Fuel pressure
– Injector
– ECM
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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