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Failed Emmissions

Discussion in 'General Tech and Maintenance' started by Sporty240, Mar 20, 2003.

  1. Sporty240

    Sporty240 Junior Member

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    I have a 93 civic Ex, 182k on it with a I/h/e, fpr w/guage, and i think it has a sport cat, havent looked under there yet.
    I failed the idle test for Hydro Carbons which they told me is unburned fuel,I got 300 when the limit is 220(ppm). I passed the (25 mph)cruise HCs (160 limit and i got 111ppm )and i passed the CO test at cruise and at idle, my fuel pressure is set at 32 psi at idle, my idle is at 680 rpm

    does anyone have any suggestions to what i can do ??? new cat??? new spark plugs??? should i adjust the fuel pressure?? please help
     
  2. E_SolSi

    E_SolSi Member of the 20 nut club Moderator VIP

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    do you have an aftermarket ECU or add on fuel thinggy ?
    you might just be running too rich

    was the car fully warmed up at the time of testing ?
    was the car sitting still running for a while?
    either of these will allow the cat to cool off and it wont burn up the unspent fuel
     
  3. hcivic.com

    hcivic.com Senior Member

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    have a warm car replace the o2 sensor
    and put the stock regulator back on
     
  4. Sporty240

    Sporty240 Junior Member

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    what is the stock fuel pressure???

    should i set the idle to a higher rpm??? will that make the cat burn hotter???
     
  5. hcivic.com

    hcivic.com Senior Member

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    not burn hotter but make sure you have the car warmed up before the test
    do you not have tha stock regulator
     
  6. MaaseyRacer

    MaaseyRacer Senior Member

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    change your spark plugs, wires, cap, and rotor. that helped me out when I failed.
     
  7. Sporty240

    Sporty240 Junior Member

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    no i do not have the stock regulator, but i would like to know what the stock fuel pressure is, at the time of the test it was set to 32 psi, and the car was warmed up, i checked a new o2 senor at schucks is like $200, but i just bought new spark plug im gonna give it another try



    thanks for your responses
     
  8. MaaseyRacer

    MaaseyRacer Senior Member

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    also dude i do not know why this would help, but it helped my buddy out, take the throtle body off, and clean the throtle body plate... the cat maybe the thing that is killing you, if i were you i would find a legal cat just for this test...
     
  9. CRX-YEM

    CRX-YEM Super Moderator Moderator VIP

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    a very cheap option is to go out and buy 2 gallons of "denatured alcohol" from your local home depot.
    with about 1 gal of gas left in your tank and the denatured alcohol to the tank, go back to the emmissions station
    you'll pass with flying colors.

    It's similar to running E85 , it's a newer alternative fuel being used these days. which burns way the f*ck cleaner than petrol.

    Some literature to read up on about new alternative fuels.

    e85fuel.com
    Ethanol info
     
  10. Vexamus

    Vexamus Member

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    Damn, you beat me to it, at least I can correct your link

    www.e85fuel.com

    :)

    this is how I will pass emissions come may time. :)
     
  11. Vexamus

    Vexamus Member

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    Hey, would you mind going over what E85 might to in your car? Have you used it yet? Will it dick up your O2 sensor, etc?

    I think the last thing people want is to be running clean but popping a code at emissions, best thing to do in that case is disconnect the CEL light from the ECU . :)
     
  12. chevy302dz

    chevy302dz Senior Member

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    If used over a period of time it will probably destroy all the rubber seals and hoses that it comes in contact with, other than that there really shouldn't be a problem with it. If you wanted to run it permanintly you would have to change everything over to neoprene seals and hard line.
     
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