2000 Toyota Corolla codes P0133 P0300 P0420 accelleration hesitation

Question

after O2 sensor was replaced gas problem occured when accelerating when stepping on gas pedal hesitation occurs

Answer 1

Hi there,

P0133 indicates an issue with the O2 sensor. Here is a list of possible causes. 

P0133 TOYOTA - HO2S11 Circuit Slow Response

Read more: https://www.autocodes.com/p0133_toyota.html

P0420 indicates an issue with the catalyst system. Here is a list of possible causes.

P0420 TOYOTA - Catalyst System Efficiency Below Threshold Bank 1

Read more: https://www.autocodes.com/p0420_toyota.html

P0300 indicates misfires on random cylinders. Here is a list of possible causes.

P0300 TOYOTA - Random Cylinder Misfire Condition

Read more: https://www.autocodes.com/p0300_toyota.html