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- 3G TL (2004-2008) (https://acurazine.com/forums/3g-tl-2004-2008-93/)

- - code p0420 2005 Tl :< (https://acurazine.com/forums/3g-tl-2004-2008-93/code-p0420-2005-tl-729265/)

lankanboy1

06-01-2009 07:48 AM

code p0420 2005 Tl :<

I got the code p0420, before i go to the dealer and spend $$$$$$$$$ is it covered under warranty ? my car is a 2005 Acura tl with 98,xxx KM on it

1fsthatch

06-01-2009 08:00 AM

Catalyst System Efficiency Below Threshold (Bank 1)

lankanboy1

06-01-2009 08:03 AM

i'v just called acura and they told me its only covered untill 3 yr 60 K.

Tumbleweed13

06-01-2009 08:58 AM

That fault is caused when the ECM doesn't see enough change between the front and rear O2 sensors. You could have a bad/slow front or rear O2 sensor or a bad catalytic converter.

lankanboy1

06-01-2009 09:03 AM

ot is it possibe cose of a bad gas ?

nfnsquared

06-01-2009 09:08 AM

Quote:

Originally Posted by lankanboy1 (Post 10959397)

ot is it possibe cose of a bad gas ?

I don't know but I suppose it's possible. If you haven't already, I'd clear the code and see if it happens again after a fresh tank of gas.

Tumbleweed13

06-01-2009 09:09 AM

Quote:

Originally Posted by lankanboy1 (Post 10959397)

ot is it possibe cose of a bad gas ?

No. Sorry

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