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Thread: Failed smog

  1. #1
    DX User
    Join Date
    Sep 2006
    Vehicle
    1989 Honda Accord LXi
    Location
    San Diego, CA
    Posts
    15

    Failed smog

    My renewal is due today and I had to bring it to a test-only station. And I failed. Basically, he said it failed because the timing is off and I might need a new catalytic converter. My car has 311,xxx miles and still has the original cat.
    Last edited by TheKevin; 12-16-2006 at 11:16 AM.



  2. #2

    shepherd79's Avatar
    Join Date
    Apr 2002
    Vehicle
    01 Civic lx auto; 03 Accord EX
    Location
    Falling Waters, WV USA
    Posts
    9,466

    Re: Failed smog

    check your timing. it should be easy to do. get timing light, manual and about 30 minutes of your time.
    since the car has 300K+ i would change the cat. they are not that expensive on ebay. Don't fall for cheap cats. look for real one. I bought mine for $77 shipped to my door.
    Alex.

  3. #3
    SEi User ZackieDarko's Avatar
    Join Date
    Aug 2005
    Posts
    1,910

    Re: Failed smog

    bummer...i passed with flying colors....slightly worse then my girlfriends stock 94 dx civic


    good luck

  4. #4
    3Geez Veteran MessyHonda's Avatar
    Join Date
    Feb 2006
    Vehicle
    89 LX-i(5speed)
    Location
    Bay Area
    Posts
    22,201

    Re: Failed smog

    yeah fix the timing....get a bottle of seafoam...put some in the tank and some down the brake boster hose....run the car hard for like 30 mins to get the cat warm....take in the car....and it should pass...mine passed that way...i was happy.


    p.s cali smog sucks

    1989 Honda Accord LX-i
    B18c1 swap since 7/2011
    175whp and 132tq
    Redzone tuned

  5. #5
    2.0Si User
    Join Date
    May 2004
    Vehicle
    1988 Accord DX
    Location
    SEMO
    Posts
    3,510

    Re: Failed smog

    With that many miles, you could or have toasted the catalytic converter with the timing off for a extended period. Some ways of telling if it is clogged, it first to see if the cat is getting extremely hot or starting to glow red. The second way is to test the backpressure. Take off your O2 sensor, install a pressure gauge into the hole & see what kind of back pressure readings you have.
    .

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