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Old 10-22-2004, 12:49 PM   #1
Jesperss
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Default P0420 on a stock 02 RS

Got a pending code P0420 on my 02 RS which is stock. I've never done anything aftermarket to it...all of the threads I've read about P0420 have been those who have put after market parts on.

Since this is an emissions issue, how long is this covered under warranty? I'l sitting at about 57k right now.

Any idea if this is something I should worry about?
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Old 10-22-2004, 01:26 PM   #2
jeffg
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This may have been covered under the 36k bumper to bumper, but not the 60k powertrain. Which is pretty silly if you ask me. I would check and make sure you havent lost a bolt or a gasket in the exahust. Check around the gaskets for carbon build up. This will point out where the leak is.

Or conversely the CEL could be correct and you have a dieing CAT. I dont know if there is any way to check CATs.

J
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Old 10-22-2004, 01:31 PM   #3
JeffrWRX
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Would reseting his ECU to see if the CEL comes back be a good idea? Thats what I would try.

-Jeff
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Old 10-22-2004, 01:40 PM   #4
Mulder
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There is a separate emissions warranty that has a longer coverage than the 3/36 or 5/60 warranties. In CA/NY it's 8/80, may be different for other states but you should be covered. Check your owners manual package for the brochure on emission warranties, the info will be in there.
Do NOT reset the ECU. Leave the code in memory so the dealer can see it, if it eventually sets a full code and triggers the CEL let them see that too.
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Old 10-22-2004, 02:30 PM   #5
Matt Monson
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8/80 emissions is on all Subbies, IIRC...
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Old 10-22-2004, 03:45 PM   #6
jeffg
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But things like o2 sensors or solonoids dont fall into emissions warrenty. At least this is what SOA rep told me. I have had a CEL for purge control solonoid ever since about 38k miles and they wont cover a new one.
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Old 10-22-2004, 03:53 PM   #7
Mulder
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Correct, only specific components are covered, not the entire fuel/emissions system. But the catalytic converter is included in that warranty and on a stock, unmodified car would be replaced if it failed during that period.
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Old 10-22-2004, 04:00 PM   #8
jeffg
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true, if the CAT is the problem.
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Old 10-22-2004, 06:07 PM   #9
Mulder
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If there are P0420 codes being stored, with no other codes related to 02-sensor issues, it's a safe bet the cat is shot.
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