The first question
Not any higher really compared to any other manufacturer. Honda did have some issues with Gen 2 CRV compressors failing but by now the vast majority have been changed.
As for aftermarket it depends on the brand/quality. Could be much better or could be worse.
As for the 420 code. That does not mean converter has gone bad by any means. Gas it didn't like being ran through it, a dirty air filter and so on can cause this code. As well as most commonly for a failure of a part, the 02 sensor. P0420 is not a converter failure code. It simply means that the O2 sensor after the converter (or in it, just not the one before the converter) is sending readings to the computer that are out of "desired range". So a long list of things can cause it. Old spark plugs is another one. Just not igniting the fuel as efficiently as the computer thinks they should be.
Both my 2007 Odyssey and my 2003 CRV will randomly decide to throw a P0420 code especially during the winter time. We have to stick with gas from 2 gas stations or it comes on. When we travel out of town with either vehicle between November and March the CEL comes on with that code about every time for a bit. Annoying but harms nothing.
Diagnosing these issues can be a royal pain in the rear (I'm a life long mechanic myself) or something as simple as an air filter or bottle of seafoam/injector cleaner poured in the gas tank.
I advise checking basic maintenance items first and reset the CEL. Put a fresh tank of fuel in. See how long it takes to come back on. If it's within a couple days then you would need to take it to a mechanic (and FYI you don't need a dealership or a Honda shop to work on Honda's, any mechanic worth his paycheck can work on them just the same as anyone else).
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Not any higher really compared to any other manufacturer. Honda did have some issues with Gen 2 CRV compressors failing but by now the vast majority have been changed.
As for aftermarket it depends on the brand/quality. Could be much better or could be worse.
As for the 420 code. That does not mean converter has gone bad by any means. Gas it didn't like being ran through it, a dirty air filter and so on can cause this code. As well as most commonly for a failure of a part, the 02 sensor. P0420 is not a converter failure code. It simply means that the O2 sensor after the converter (or in it, just not the one before the converter) is sending readings to the computer that are out of "desired range". So a long list of things can cause it. Old spark plugs is another one. Just not igniting the fuel as efficiently as the computer thinks they should be.
Both my 2007 Odyssey and my 2003 CRV will randomly decide to throw a P0420 code especially during the winter time. We have to stick with gas from 2 gas stations or it comes on. When we travel out of town with either vehicle between November and March the CEL comes on with that code about every time for a bit. Annoying but harms nothing.
Diagnosing these issues can be a royal pain in the rear (I'm a life long mechanic myself) or something as simple as an air filter or bottle of seafoam/injector cleaner poured in the gas tank.
I advise checking basic maintenance items first and reset the CEL. Put a fresh tank of fuel in. See how long it takes to come back on. If it's within a couple days then you would need to take it to a mechanic (and FYI you don't need a dealership or a Honda shop to work on Honda's, any mechanic worth his paycheck can work on them just the same as anyone else).
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