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P2197, P0171, P0174 Codes

Discussion in 'Terminator Talk' started by PowerWheels, Jun 23, 2009.

  1. PowerWheels

    PowerWheels Anti-Bullshit Established Member

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    Well, my cars engine light came on, here are the codes.

    P2197
    P0171
    P0174

    The car just started to idle high yesterday and also idles a bit rough. I have noticed a bit of power loss under WOT pulls in 3rd and 4th over the last week. Any assistance on the fix would be greatly appreciated.

    I did get a COP wet once and had to take the plug cover off and dry it. Other than that never had any electrical issues.

    Car has 92k on it, I just replaced the K&N Filter 2 days ago and the plugs were changed about 20k-30k ago as well as the fuel filter.

    I haven't cleaned the MAF in a long while. Edit: The rear O2 sensors are turned off in my tune.

    Mods are in the sig.
     
    Last edited: Jun 23, 2009
  2. PowerWheels

    PowerWheels Anti-Bullshit Established Member

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    Been researching, I'm going to clean the MAF and look for any obvious vacum leaks, where I have no idea, andy suggestions?
     
  3. TERMIN8TR

    TERMIN8TR New Member Established Member

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    P2197-????
    P0171-System Too Lean (Bank 1)
    P0174-System Too Lean (Bank 2)
     
  4. 03cobra#694

    03cobra#694 You Guys... Staff Member Super Moderator

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    DTC: p2197 Ford says the cause may be an engine vacuum leak, possibly around the PCV valve or in the PCV vacuum plumbing. Such a leak may set the following DTC: P2197. The code may indicate a lean fuel condition or a lack of heated oxygen sensor (HEGO) switching. Ford says not to replace the oxygen sensor, MAF sensor or PCM because the cause may only be a vacuum leak or an incorrect sized PCV valve that flows too much air.
    I`d look for a vacuum leak
     
  5. TERMIN8TR

    TERMIN8TR New Member Established Member

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    Which would give the other 2 codes. Good catch, check for a vacuum leak
     
  6. 03cobra#694

    03cobra#694 You Guys... Staff Member Super Moderator

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    Exactly
     
  7. PowerWheels

    PowerWheels Anti-Bullshit Established Member

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    The PCV tube going from the valve cover to the intake is fine. What's next.
     
  8. 03yellow

    03yellow New Member Established Member

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    Had the same code PO174:
    reset code ...never came back!

     
  9. PowerWheels

    PowerWheels Anti-Bullshit Established Member

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    I've reset it and it comes back, plus it's not running correctly. Going to clean the MAF tonight, i don't expect it to help, but it won't hurt.
     
    Last edited: Jun 24, 2009
  10. PowerWheels

    PowerWheels Anti-Bullshit Established Member

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    Well cleaned the MAF and a few electrical plugs. Now I'm pissed, the plug that goes to the A/C broke. Off to Ford to buy another in the AM, I'm probably just going to let them look at it.
     
  11. PowerWheels

    PowerWheels Anti-Bullshit Established Member

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    Did take it to them, and you guys were right, a hose behind the S/C was letting air in. Wish I would have found it myself, but it's running great now.
     
  12. 03cobra#694

    03cobra#694 You Guys... Staff Member Super Moderator

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    Glad you got it fixed:beer:
     
  13. x NOODLES x

    x NOODLES x Big Hitter da LLama! Established Member

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    +2 :beer:
     

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