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One shot to get it right

Discussion in 'Wrangler YJ (1986-1995)' started by scharkmaefer, Apr 27, 2019.

  1. Apr 27, 2019 at 9:24 AM
    #1
    scharkmaefer

    #1
    scharkmaefer [OP] New Member

    Joined:
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    92 yj runs like complete scrap when it's cold and when it warms up(weather) it runs way better .b.but still like em running out of gas . Not one mechanic say the same thing. MAP sensor? Pressure regulator? If I had my way I replace it all. But I gotta get this right. Anyone have this issue
     
    scharkmaefer, Apr 27, 2019
    #1
  2. Apr 27, 2019 at 9:46 AM
    #2
    Awrench

    #2
    Awrench Well-Known Member

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    Jeeps are pretty easy to work, but with any vehicle the secret is -
     
    Awrench, Apr 27, 2019
    #2
    aggrex and TJ_abuser like this.
  3. Apr 27, 2019 at 10:03 AM
    #3
    aggrex

    #3
    aggrex Well-Known Member

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    DE
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    Backcountry '16
    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
    Welcome @scharkmaefer ....some additional details about the YJ could help zero in on the issue(s)
     
    aggrex, Apr 27, 2019
    #3
  4. Apr 27, 2019 at 5:27 PM
    #4
    TJ_abuser

    #4
    TJ_abuser Well-Known Member

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    2005 jeep unlimited
    2 inch lift, bumper and winch 33" mud claw
    Is what @Awrench the secret is what where the last page of this book? Lol
     
    TJ_abuser, Apr 27, 2019
    #4
    aggrex likes this.
  5. Apr 27, 2019 at 5:46 PM
    #5
    Jim Beam

    #5
    Jim Beam Well-Known Member

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    Fuel Injection, Dana 44s, T18, 4.10s w/lockers
    When your engine is cold it is in an "open loop mode", some of your sensors are not operating or operating in a cold engine mode. As it warms up it goes into a "closed loop", meaning of the sensors should be functioning correctly. It can be an electrical issue also. Check for any engine codes of course.
     
    Jim Beam, Apr 27, 2019
    #5
  6. Apr 27, 2019 at 6:46 PM
    #6
    aggrex

    #6
    aggrex Well-Known Member

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    Backcountry '16
    Tuffy>AEV>TTO>JW>STech>EVOcage>MagnaFlow>SpiderTrax>RockHard>TF>SpringTail>67design>Bolt>GPCA>Curt>
     
    aggrex, Apr 27, 2019
    #6
    boondoc89 likes this.
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