Check Engine + exhaust problems

Aug 11, 2005 2 Replies
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Hi, I have a 2002 GLE with 87k miles. A week ago, I noticed that the car sounded louder. 2 days ago, my check engine light came on, and just today, it definitely feels like my mid-pipe has a hole in it, coz it is loud as hell. While I'm waiting to get these things checked up, I read a post about how these could be related.



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The above post talks something about the leaking exhaust blowing my 02 sensor. Does this make sense, to any of you mechanics out there? Can I get aftermarket parts for the 02 sensor?



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After taking it to Meineke, I was told that the muffler completely rotted out right past the flange. Rear exhaust assembly (muffler) parts

  • install ranged from 0 - 0. Apparently, this is a common problem with late model Maximas in the New England area (where snow + road salt can wipe out an undercarriage), but I would not expect rotting on a 3 year old car.

Anyways, I took it to a custom exhaust shop, that saved me a ton of money, by just welding in a new pipe at the rotted junction.

About the check engine light, the codes were P0455 (EVAP Emissions leak (large)) and P1448 (Manufacturer specific). I reset the lights, will let you know if it comes back on. Anyone know what P1448 stands for?

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P1448 either means "Evap Canister Vent Control Valve" or "Vacuum Cut Valve", based on my search online. And, yes, the CEL has come back on, I'm waiting to get a diagnostic reader to deal with this. I guess, I have to take care of this soon, since my state inspection is due in 2 months..

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