My 2005 chevy equinox keeps showing problem code P0420 How do I fix this problem?

https://www.obd-codes.com/p0420

Do you know what a catalytic converter is ? P0420 How To Diagnose Bad Catalytic Converter EricTheCarGuy Your best bet , take your vehicle to a qualified repair shop that knows how to diagnose this P0420 code .

no,it wont go out until it is reset,fixing those problems will keep it out,but,not for good

To test its efficiency, connect a scan tool that will read values

07 Chevy Equinox shows codes P1779 C0561 P0404 P0405 How to fix

If the owner's manual is still with vehicle, look in the section explaining the sound system. There will be a section explaining how you can reset the radio code, as well as locking and unlocking the radio. If you choose to reset the code, write it down for safe keeping...but not in the owner's manual.

I currently have P0742 and P0700 problem on my 2005 Chevy Equinox. My car engine flares often and sometimes the gears don't shift. Do you have any tips on how you fixed these problems?

check the coolant temp sensor

Do you have an odd smell in the interior compartment? This could be due to the egr being damaged from debris from the road. Hire a professional to do it or go to a car parts store and get the motors repair manual or similar.

code 420 is catalytic converter is not efficient and should be replaced i am sorry no fuse will fix this.get a new mechanic.this fairly common on these vehicles .