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2002 Ford ZX2(again) Short Term Fuel Trim and Long Term Fuel Trim trying to find a vacuum leak

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  • June 22, 2012 at 11:00 am #459290
    rice400rice400
    Participant

      STFT is good but your

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    • June 30, 2012 at 11:00 am #459314
      nsman06nsman06
      Participant

        Oh and also the LTFT was high at 19.5 and the stft ranged from 5.5-10.2

        July 30, 2012 at 11:00 am #459322
        nsman06nsman06
        Participant

          Okay so the final verdict is in. The PCV elbow that I had jerry rigged along time ago finally died. So I went to the junkyard and got one that looked fairly new and bingo my LTFT dropped from 19.5 down to 0. And my STFT

          July 31, 2012 at 11:00 am #459323
          spelunkerdspelunkerd
          Participant

            Thanks for giving us the update. I’m impressed, again, that Scannerdanner came through with a solution unique to this vehicle. I guess a smoke machine would have helped find it as well.

            July 31, 2012 at 11:00 am #459324
            chadicenhourchadicenhour
            Participant

              This is typical of most Ford vehicles of this era. I’ve seen bad PCV elbows on escorts, focus’ zetec and SPI engines, escapes with the v6. Atleast its an easy fix. Glad you got it sorted out.

              July 31, 2012 at 11:00 am #459325
              dreamer2355dreamer2355
              Participant

                Thanks for posting the fix!

                August 1, 2012 at 11:00 am #459326
                EricTheCarGuy 1EricTheCarGuy
                Keymaster

                  Cool glad you found the problem, thanks for keeping us up to date and for using the ETCG forum.

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