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P0193 - Fuel rail pressure sensor circuit high input

Discussion in 'EEC V' started by yeahmen, December 12, 2007.

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    1. yeahmen

      yeahmen New Member

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      Year and Model:
      04 Sport trac XLS
      I keep getting this code. I would reset with my OBD II Scanner and it would still appear. Can some one guide me in the right direction as what i may need to check and repair/replace. I have a sport trac 2004 XLS.

      Thanks
       
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    3. MountaineerGreen

      MountaineerGreen Towing Moderator Moderator Emeritus

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      City, State:
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      Year and Model:
      2012 F150 4x4
      Sounds like your fuel pressure regulator or whatever your truck uses to regulate fuel pressure is messed up, or the sending unit is bad. Clearing the code won't work- you have a problem that needs to be fixed. I think yours uses a returnless fuel system, so the pump and regulator may be all the same thing :dunno:

      The best thing to do is get a fuel pressure gauge, connect it to your rail and see what your fuel pressure is.
       
    4. cjones101812

      cjones101812 Active Member

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      City, State:
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      Year and Model:
      06 Explorer EB
      is this a flex fuel vehicle?? VIN code K

      if so, with scanner connected, Key ON Engine RUN, is pressure above 119.9 psi??
       
    5. yeahmen

      yeahmen New Member

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      Engine Type

      The vehicle's engine type is 4.0L V6 FI SOHC. Don't know if that information will be helpful. The eighth character in the VIN is a K.
       
    6. cjones101812

      cjones101812 Active Member

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      according to my book, vin X is the 4.0L FlexFuel engine.

      are you running gasoline or natural gas??

      assuming you are running gasoline...

      check for fuel in the vacuum hose of the FRP sensor after running engine at idle for 2 minutes. if not, check fuel pressure.

      if pressure good, check voltage between Sensor connector Vref (Pin#3 LB)and Signal Return (Pin#4 GY/RD) should be 4.0-5.5v with key ON.
       
    7. ortiz1108

      ortiz1108 New Member

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      City, State:
      columbus, georgia
      Year and Model:
      2004 ford sport trac
      where can locate the fuel rail pressure sensor a circuit high on my 2004 sport trac ford?
       

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