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Old 08-21-2017, 06:13 PM   #1 (permalink)
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Default 2010 Insight Code P0420

Hi,

I am a newbie to this community and is seeking advice. I live in California and just bought a 2010 Insight EX with 157K miles and saw the emission warning light after driving the car for just 2 days. I have a feeling the previous owner knew this and is the reason for selling the car. Unfortunately the warranty covers up to 150K. I went to AutoZone and the reader came up with P0420 only. Based on the threads I read I am assuming the front catalytic converter (mounted to the exhaust) is bad. The most expensive fix is to replace the converter and the least expensive fix is to use the no-fouler. Is there anything other options? What size of the no-fouler should I get? Thank you in advance.
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Old 08-21-2017, 11:18 PM   #2 (permalink)
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put in a patch pipe in place of the faulty cat and screw emissions
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Old 08-22-2017, 12:42 AM   #3 (permalink)
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How do you propose that he get it registered in CA?

OP, if you aren't able to register the car I believe that you have recourse against the seller.

Does the anti-fouler work in a G2? I don't remember this coming up before. It wouldn't hurt to try.

Sam
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Old 08-22-2017, 01:33 AM   #4 (permalink)
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Two days? I think I might start with whoever did the smog inspection required to sell and register a vehicle in California. Rainsux is right, it is the seller's responsibility to provide a smog cert when selling a car. If you did not get one, talk to the seller.
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Old 08-22-2017, 01:37 AM   #5 (permalink)
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Also, in my neighborhood there has been a recent rash of Cat Converter thefts. Perhaps the seller was a victim and put in a crappy aftermarket one just to sell it.
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Old 08-22-2017, 02:15 AM   #6 (permalink)
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I was able to get the car smog before the emission light came on. At least I am good for 2 years and I guess I was lucky. I wished I can by pass the emission but in California that is a no go. Thank you for all the comments.
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Old 08-22-2017, 02:53 AM   #7 (permalink)
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Quote:
Originally Posted by Rainsux View Post
How do you propose that he get it registered in CA?

OP, if you aren't able to register the car I believe that you have recourse against the seller.

Does the anti-fouler work in a G2? I don't remember this coming up before. It wouldn't hurt to try.

Sam
The anti fouler trick has been used since the late 80's. (Those cars still couldn't pass because of the pesky rollers). So yes it will work on the G2. However if you do install a spacer, be sure to gut it. If you don't and it start falling apart and clogging your exhaust, you can, and will, burn valves.
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Old 08-22-2017, 11:22 AM   #8 (permalink)
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Balto,

One quick question on gutting the spacer. I see spacer from eBay that is like an extender and also spacer that is closed on one end with a small hole in the middle. I am thinking of getting the spacer like an extender that I do not believe I need to gut. Is this correct? I want to make sure I understand what you mean. Thank you.
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Old 08-22-2017, 11:30 AM   #9 (permalink)
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Balto likes to gut cats, so that is probably what he is talking about. You don't know if your cat is bad. Get the spacer with the small hole in the bottom. Like this one: https://www.amazon.com/KKmoon-Stainl...r+spacer&psc=1 It may or may not work, but it's the cheapest thing to try at this point.

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GAZ rear shocks
2003 Lean Burn CVT (Wife's car)
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2002 Blue getting new engine
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Old 08-22-2017, 11:59 AM   #10 (permalink)
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make sure it it is a real code.

my insight will throw a 420 on a hot day (over 95 degrees)
shortly after I start the car.

and on days less than 90 it does not throw the code.

victor
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