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98 S70 Check engine light ( code P0172 issue) S70 1998

posted by  Elastic on  Wed Apr 27 02:43 CST 2005
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Hello,
i'm a new comer from Taiwan. My car is 98 s70 2.5NA and got a problem recently.
Please kindly give me some instruction if you have any idea.
Few weeks ago, check engine light ON (lambda signal), i use OBDII reader to check it and it shows P0172. no symptom before.
I got some information from this forum, and some post shows it may related to MAF sensor or vacuum leakage.
Last sunday, i try to clean MAF Sensor, but unfortunately my car got uneven idleing today afetr 10km driving. ( idle speed is around 1100rpm)

This is my first time to post in this forum and sorry for my poor english.
Any comment will be appreciated.

Elastic








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    98 S70 Check engine light ( code P0172 issue) S70 1998

    posted by  V70BB on  Fri Apr 29 14:30 CST 2005
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    Vacuum leak or fuel pressure or delivery problem will also cause this code.
    --
    1998 V 70 BASE








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      98 S70 Check engine light ( code P0172 issue) S70 1998

      posted by  Elastic on  Fri Apr 29 18:18 CST 2005
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      Dear ALL,
      Thanks all of your kindly response. A great forum!
      I checked my car today again and find out an elbow with a big crack near the throttle body (seems for Crankcase Ventilation, not sure!)
      New elbow was replaced this morning, but its idle speed is around 900rpm.
      Maybe i still need sometime to verify if my trouble is solved.
      Thanks again!

      Elastic







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    98 S70 Check engine light ( code P0172 issue) S70 1998

    posted by  tina on  Fri Apr 29 11:32 CST 2005
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    last visit: Thu Nov 24 09:34 CST 2011
    [RELATED]

    Hello,

    The following website has a list of some codes that may help you:

    http://www.volvospeed.com/maintence.htm








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    98 S70 Check engine light ( code P0172 issue) S70 1998

    posted by  someone claiming to be spangler on  Wed Apr 27 16:32 CST 2005 [RELATED]

    DOn't worry about your English. It's better than mine. Does your OBD II readout give you anything besides PO 172? SOmething like "Evaporative leak"? That code looks familiar to me as I think I had it several weeks ago but my memory ain't what it used to be. Anyway. it turned out to be due to bad o ring on the gas cap.

    sp







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