DTC P0420 = Catalyst System Efficiency Below Threshold (Bank 1)
You can drive it but it would be wise to have the vehicle checked out as soon as possible. Putting this off could cost you more in the long run. If you have other codes preceding code P0420 fix them in order as they come up before you attempt to fix P0420.
P0420 is catalytic converter efficiency failure.
plug a obd 2 code reader into your car and activate it.
OBD I code 67 - Neutral Drive Switch Circuit Open ( key on , engine off )
There are a number of things that could be causing the P0420 catalyst efficiency code. The most common thing is the catalytic converter is no longer working. The other thing is the rear oxygen sensor is no longer working properly or there is a leak in the exhaust system.
what car??find your car on this site and i am sure you will find the code. http://www.troublecodes.net
I have a 1998 dodge stratus and the obd inspection results are showing notcomplete or unsupported. I have been told to drive the car so the computer can reset. What is the drive cycle for this car. I have a 1998 dodge stratus and the obd inspection results are showing notcomplete or unsupported. I have been told to drive the car so the computer can reset. What is the drive cycle for this car.
Yes a OBD 2 scanner/reader will work on your car
OBD II P0420, Catalyst System Efficiency Below Threshold. In some cases, there may be some performance problems noticed by the driver such as a lack of power from a restricted and/or damaged Catalytic Converter.Common Problems That Trigger the P0420 CodeInefficient Catalytic Converter(s)Defective Front or Rear Oxygen Sensor(s)Misfiring enginesCommon MisdiagnosesOxygen Sensors good-day ! hope this helps !
This is not a "Generic" OBDII code. That means that it means diferent things on diferent car makes.
What does obd code P0740 mean
car engine dies out went ac goes on
bring the car into a shop and have them scan the code or go to a part store and get a obd scanner that applies to the year of the car