Car Problem

Discussion in 'Science, Technology & Car Chat' started by runtohell121, Nov 30, 2007.

  1. runtohell121

    runtohell121 ........................

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    My 1999 Honda Accord v6 has 2 error codes which I dont know much about it.. anyone have any clue what kind of codes are these? P0170 and P0172. I would love to have pictures of it much easier to understand then words:D you can write in chinese if you want:D
     
  2. Aoes

    Aoes Well-Known Member

    bad cat or o2 sensor... might also want to do a leak test...
     
  3. ralliart

    ralliart Well-Known Member

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    I have a 99 Accord Tooo, but its a 4 Cyl, lol

    It might be a bad O2 sensor like what Aoes said, You have 2 O2 sensors, 1 on your front pipe and 1 on your Cat, take it to a mechanic and they can diagnose it for you.
     
  4. runtohell121

    runtohell121 ........................

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    well i already replaced the one at the cat 2 times...

    by any chance does anyone know what items do i need to replaces? pictures please and the location of the things please:D
     
    #4 runtohell121, Dec 1, 2007
    Last edited: Dec 1, 2007
  5. Spike23qq

    Spike23qq Well-Known Member

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    best advice is go to a honda forum haha.
    They have all the obd codes...=p too man honda fan boys.
    SHould only take u few seconds to find out the exact problem.
     
  6. runtohell121

    runtohell121 ........................

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    P0170: Fuel Trim Malfunction (Bank 1)
    P0172: System adaptive fuel too rich

    no clue what those mean though..
     
  7. Aoes

    Aoes Well-Known Member

    lol

    1) there could be a leak somewhere, this would be the worst scenario, cuz its a bitch to find... and possibly can't be fixed...

    2) Your cat may have died so it can't burn up the rest of the a/f mix that didn't burn + exhaust to meet emission standards and ur O2 sensors are catching that problem thinking it might be because you're running too rich...

    3) you got a bugged O2 sensor...

    those 3 are the best answers i can give you... there are a lot of other possibilities that could contribute... anywhere from fuel injectors being plugged up, dead spark plugs, pcv valve, etc... the main thing u need to know is that for some reason your accord is sending a lot more fuel than air into your cylinders and it's not burning up causing your O2 sensors to pick that up and giving you those error codes...