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Old 06-01-2009, 07:48 AM   #1
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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
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Old 06-01-2009, 08:00 AM   #2
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Catalyst System Efficiency Below Threshold (Bank 1)
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Old 06-01-2009, 08:03 AM   #3
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i'v just called acura and they told me its only covered untill 3 yr 60 K.
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Old 06-01-2009, 08:58 AM   #4
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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.
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Old 06-01-2009, 09:03 AM   #5
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ot is it possibe cose of a bad gas ?
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Old 06-01-2009, 09:08 AM   #6
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Quote:
Originally Posted by lankanboy1 View Post
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.
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Old 06-01-2009, 09:09 AM   #7
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ot is it possibe cose of a bad gas ?
No. Sorry
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