A failed catalytic converter can cause the code P0420; the OEM catalytic converter is expensive, but it's possible to find an aftermarket part that is much cheaper. A faulty starter solenoid can cause a no-start condition where the starter would click but would not crank. The starter motor ...
I know of no other fix other then factory cats as of yet. I am looking into one other alternative but am not sure of what the outcome would be. tmoney4 Member Posts: 8 March 2009 Thanks again 4 the info...I will definitly keep that in mind if I get the P04020 code ...
Reading out the fault codes using a diagnostic device is relatively reliable. If you see any fault code from P0420 to P0424 or from P0430 to P0434 in the OBD2 scanner, it indicates a problem with the catalytic converter. However, this is not always the case, as a bad oxygen sensor c...
The Cel code P0420 will stop the cruise control on your car from working, it wont go into limp home or low power mode. Can be reset by removing battery connection or using obd tool to reset. It going to keep coming back until you disable it though.Why...