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Shuts down soon as I let off the gas

Discussion in 'Wrangler YJ (1986-1995)' started by Ranger75, Dec 10, 2020.

  1. Dec 10, 2020 at 9:18 AM
    #1
    Ranger75

    Ranger75 [OP] New Member

    Joined:
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    First Name:
    Tim
    Vehicle:
    91 jeep wrangler
    I have a 91 jeep wrangler and recently changed the fuel pressure regulator and now it will hard start and I can keep it running by feathering the gas peddle but will not idol and shuts down as soon as I let off gas. I seem to have good fuel pressure when I press the bleeder value. I am going to change the o2 sensor this weekend but not sure if that's going to help. jeep was running fine before I had the leak on the fuel pressure regulator. any help would be appreciated.
     
  2. Dec 14, 2020 at 12:06 PM
    #2
    Ranger75

    Ranger75 [OP] New Member

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    i changed the o2 sensor no better.. should i check for proper fuel flow? How ?
     
  3. Dec 14, 2020 at 3:29 PM
    #3
    Prerunner1982

    Prerunner1982 Well-Known Member

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    You might take the Idle Air Control valve out and clean it carefully.
    It sounds like it's not getting air when you let off the throttle.
     
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