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Thread: Trouble passing emissions

  1. #1
    I have bad luck. 95V6's Avatar
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    Trouble passing emissions

    I'm havering problems passing inspection, mainly emissions.

    Here's the problem:

    The sealed bearing on the throttle body is leaking past the IAC. The o ring on the mass air flow sensor needs replaced. And the mass air needs to be compatible with a new throttle body. Thus running lean. It threw a code, both banks running lean and no vaccume leaks. He sprayed carb cleaner around the IAC both 02 sensors came online and it richen'd up. He had it hooked up to a laptop and it showed everything else was great, great fuel pressure and all injectors good.

    So I have to a new throttle body, mass air sensor, and I'm getting rid of the junk cold air that came with the car. I'm going to buy the stack cold air and tuner combo from AM, kill two birds with one stone. As for throttle body my C&L is for 75mm TB just going with the cheapo from AM. As for mass air sensor I have no idea.
    -Barry
    2003 Ford Mustang Dark Shadow Grey 4.6L GT
    2004 Ford F-150 Super Crew Dark Shadow Grey 5.4L

  2. #2
    Member torqueboxer's Avatar
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    Whats your question?
    New combo going in 410w, tea225 high ports solid roller, novi2000, glens fuel system, pa
    Supercomp c4, some other things, hoping to run 10's...update 10.50@120 on 8 burned pistons...hoping to run 9's no cage in sight

  3. #3
    I have bad luck. 95V6's Avatar
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    Question is does this sound right?
    -Barry
    2003 Ford Mustang Dark Shadow Grey 4.6L GT
    2004 Ford F-150 Super Crew Dark Shadow Grey 5.4L

  4. #4
    Kickin it Old School somethingclever's Avatar
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    unplug the battery...drive it for 50 miles and take it back.....

    do you have long-tube headers in place of the fatory manifolds?
    -JOHN

    Carburetors and SAE wrenches.................


    Buy Made in the USA - It Matters.

  5. #5
    I have bad luck. 95V6's Avatar
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    Quote Originally Posted by somethingclever View Post
    unplug the battery...drive it for 50 miles and take it back.....

    do you have long-tube headers in place of the fatory manifolds?
    No LT's.

    We did and the CEL came back on.
    -Barry
    2003 Ford Mustang Dark Shadow Grey 4.6L GT
    2004 Ford F-150 Super Crew Dark Shadow Grey 5.4L

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