p0420 honda crv

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  #1  
Old 01-05-15, 12:02 PM
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p0420 honda crv

I am getting an error code p0420 Bank 1 on my honda crv and have a few questions about it.
1. I know that it is related to catalytic converter, but does that error code mean it is a specific cat or is that just referring to the cats in general if I have more than one?
2. How do I know if I have more than one?
3. Where can I find specific instructions to replace it?
 
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Old 01-05-15, 01:06 PM
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What year CRV ? ..................
 
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Old 01-05-15, 01:32 PM
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sorry about that its a 2006
 
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Old 01-05-15, 02:41 PM
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Here's a simple diagram:

2006 Honda CR-V Parts - Honda Parts | OEM Honda Parts | OEM Honda Accessories

You may be able to get R&R info at autozone.com in the repair help section.
 
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Old 01-05-15, 02:42 PM
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BTW, how many miles on it? May pay to get a proper diagnosis before jumping to swapping out the converter as there may be other reasons for getting that code.
 
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Old 01-05-15, 03:23 PM
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about 120,000
we plan to have a mechanic conform whats wrong this weekend, but I intend to fix it, so based on the diagram you gave me there is only one cat right?
 
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Old 01-05-15, 06:11 PM
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  #8  
Old 01-05-15, 10:46 PM
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very very sneaky ukrbyk I will keep that in mind if I don't have the money LOL
 
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Old 01-06-15, 06:31 AM
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sneaky but works. see, thing is, there must have been a day of PO420 problems yesterday. on Eric's site, a fellow Honda owner posted same situation on his Pilot. but what he did, he pulled error codes the old fashion way, by making CEL flash. come to find, you can still do this on OBD2 cars and, allegedly, it actually pulls not generic codes, but OEM Honda ones.
so, under PO420 OBD2 code condition, flashes showed 165 code, or 16 + 5 flashes. according to him, that's actually NOT a cat, but IS O2 sensor.
just saying....
 
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Old 01-06-15, 06:45 AM
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Old 01-06-15, 03:35 PM
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Well, the cat efficiency code would be triggered through the O2 sensors inputs....
 
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Old 01-06-15, 08:22 PM
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"most" cat codes are do to safe driving. not accelerating hard. this allows carbon to build up in the cat, causing it not do its job. there are a few ways to correct this. 100% way is to replace the cat. next would be to cause a ignition miss fire and let it idle for 3 mins( pull out a plug wire), and then reinstall the wire and drive it. next would be run some concentrated fuel cleaner through a vacuum hose(small) while idling, and then drive it. my preferred method is to just select 2nd gear, and drive it down the road, accelerate hard to 4-5k rpm and then coast to 2-3k 4 to 5 times. main goal is over fuel the cat and then ignite it causing it to burn the carbon out. all of course require a pcm reset( batt disconnect).
 
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