error p0420 toyota
Error P Toyota p Level Repair Difficulty Level Add Comment http www autocodes com p toyota html Forum Code Possible causes - Three way catalyst converter Bank relatedl - Exhaust tube- Intake air leaks- Fuel injectors may be faulty- Fuel injector leaks- Spark plugs may be faulty- Improper ignition timing- Engine Control Module ECM What does this mean Tech notes As the code description implies the P code means that the vehicle's control module has detected that the three-way catalytic converter is not working properly is not as efficient as the factory is expecting Replacing the oxygen O sensors may