Have you had to replace your catalytic converter yet? - Honda Pilot - Honda Pilot Forums
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post #1 of 6 (permalink) Old 04-13-2011, 04:23 PM Thread Starter
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Have you had to replace your catalytic converter yet?

Posting here, since this seems to be the popular section on the forums.

As stated here: 2006 Pilot P0420 Catalytic Code Please Help.

I have recently gotten the check engine light, relating to my catalytic converter. I tried clearing the light myself, and it came back twice. It since went away on it's own.

My questions are:
1. Has anyone had to replace the catalytic converter yet on their Pilot?
2. If you did replace it, did you go Honda or aftermarket?
3. Has anyone seen a loss in MPG when this error code shows (P0420)?


115,000 miles on my 05
P0420 - catalyst system efficiency below threshold bank 1

2005 Pilot EX - L. The L is for Love.

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post #2 of 6 (permalink) Old 04-13-2011, 05:53 PM
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Could also be bad O2 sensors.

I don't recall anyone posting about a bad cat.

However beautiful the strategy, you should occasionally look at the results.
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post #3 of 6 (permalink) Old 04-13-2011, 08:07 PM
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Agreed 06 here as well and I assume my cat is just fine. I mean no codes.

Also upon googling are aftermarket cats really $100-200?
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post #4 of 6 (permalink) Old 04-13-2011, 10:01 PM
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I had mine replaced last summer...05 EXL...59,000 miles.
CEL was on with code P0430...(Bank 2)
cause:faulty front cat converter.
covered under warranty.

Also,always buy the OEM cat.
my friend's car replaced his with an aftermarket cat....
CEL came back in less than a year....
he had to change it again with the OEM converter....
no more CEL. regarding the cat.
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post #5 of 6 (permalink) Old 04-14-2011, 12:19 AM
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I had mine replaced at 81,xxx by the dealer,lucky they covered it even tho it was 1,000 miles over the warranty.I also had the P0420 code that came and went as it pleased,always replace with oem cat,I hear that they could be pricey but and aftermarket may cause problems later down the road costing you more money.
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post #6 of 6 (permalink) Old 04-14-2011, 07:25 PM
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I have 110,000 miles on my original cat and no issues. I have heard many times to stick with oem cat as aftermarket will fail in a year or two and may not pass smog.

2005 LX 4wd
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