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I've received the P0193 Code (Fuel Rail Pressure Sensor, High Input) on my Ford Escape (2005), I was curious what the most likely cause is for this issue, I've read some posts that say simply to replace the Fuel Rail Pressure Sensor (which is listed as one of 4 candidate causes); others include the fuel pressure regulator and fuel filter (already done) and fuel pump.

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Posted on Jan 02, 2017

  • 7 Answers

SOURCE: code P0193

The pressure in your fuel injection system is too high. You might need a new fuel pump or fuel regulator. Disconect the fuel line and check the pressure with a gauge {should be about 14 psi}. If it is its the regulator, if not the pump.

Posted on Apr 24, 2009

ZJLimited
  • 17970 Answers

SOURCE: p0193 fuel rail pressure circuit

P0193 - Fuel Rail Pressure Sensor Circuit High Input
The Fuel Rail Pressure (FRP) sensor is a diaphragm strain gauge device in which resistance changes with pressure. The electrical resistance of a strain gauge increases as pressure increases, and the resistance decreases as the pressure decreases. The varying resistance affects the voltage drop across the sensor terminals and provides electrical signal to the Powertrain Control Module (PCM) corresponding to pressure.

Strain gauge type sensors are consider passive sensors. A passive sensor is connected to a voltage divider network so that varying the resistance of the passive sensor causes a variation in total current flow.

Voltage that is dropped across a fixed resistor in series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.

The FRP sensor measures the pressure of the fuel near the fuel injectors. This signal is used by the PCM to adjust the fuel injector pulse width and meter fuel to each combustion cylinder.

Symptoms:
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine will not start

Possible causes
- Excessive resistance in the circuit
- Low or no fuel
- Wiring harness connector of the fuel pressure sensor
- Fuel Rail Pressure Sensor
- Fuel Pump


Hope this helps (remember to rate this answer).

Posted on Jan 12, 2011

  • 691 Answers

SOURCE: 2005 Ford explorer starts up

It's the fuel pump. Change it and the fuel filter. I doubt if any of the other items are faulty.

Posted on Aug 25, 2011

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I want to no this code for a ford explorer, gas problem, code p0193


Fault Code Definition P0193
  • Fuel Rail Pressure Sensor Circuit High Input
What does this mean?
The Powertrain Control Module (PCM) needs to know the fuel pressure at all times so it can effectively control the fuel injectors and deliver the optimal amount of fuel into the engine's combustion chambers for maximum power and economy while maintaining the lowest tailpipe emissions.
Code P0193
indicates that the signal from the Fuel Rail Pressure Sensor and/or its circuit is too high, indicating a fuel pressure condition that is abnormally high.

Mar 05, 2017 | Ford Cars & Trucks

2 Answers

P0193


http://m.youtube.com/?#
Go to you tube and look for how to install fuel pressure regulator.

Jan 11, 2014 | 2005 Ford Focus ZX3

1 Answer

2005 Ford Freestar 4.2L, ocassionaly when driving car will sputter I drove it with scanner plugged in and it started out with 39 psi fuel rail pressure when car sputters even the slightest it jumps to 78...


Well the code is telling what you already know, that the sensor is sending data that is too high. You would need to hook up a fuel pressure gauge and check the accuracy of the sensor.

Apr 14, 2013 | 2005 Ford Freestar

2 Answers

P0193 - fuel rail pressure sensor circuit high input


Possible causes- Excessive resistance in the circuit
- Low or no fuel
- Wiring harness connector of the fuel pressure sensor
- Fuel Rail Pressure Sensor
- Fuel Pump
help.png Help with thisSymptoms- Engine Light ON (or Service Engine Soon Warning Light)
- Engine will not startP0193 DescriptionThe Fuel Rail Pressure (FRP) sensor is a diaphragm strain gauge device in which resistance changes with pressure. The electrical resistance of a strain gauge increases as pressure increases, and the resistance decreases as the pressure decreases. The varying resistance affects the voltage drop across the sensor terminals and provides electrical signal to the Powertrain Control Module (PCM) corresponding to pressure.


Strain gauge type sensors are consider passive sensors. A passive sensor is connected to a voltage divider network so that varying the resistance of the passive sensor causes a variation in total current flow.


Voltage that is dropped across a fixed resistor in series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.


The FRP sensor measures the pressure of the fuel near the fuel injectors. This signal is used by the PCM to adjust the fuel injector pulse width and meter fuel to each combustion cylinder.P0193 Information for specific makesP0193 FORD
P0193 HONDA
P0193 ISUZU
P0193 MAZDA
P0193 LEXUS
P0193 VOLKSWAGEN
Need more help?Do you need more help with the P0193 code? ask a question to all or users or search the top hand picked automotive forums for more information

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Help Engine-Codes.comHelp us improve Engine-Codes.com leave a comment below. Did the information help you fixing the P0193 code? What are the symptoms for the P0193 code? Have you replaced any parts?
Any information is appreciated. Thanks


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Sep 10, 2012 | 2005 Hyundai Tucson

3 Answers

Code p0193


first find out what the code is for. call autozone and tell them to look up the code and they will be able to give you a list of possiable causes, then go on and make your decision as to what you are going to do to fix the problem

Jun 03, 2012 | 2005 Ford Escape

1 Answer

Diagnostic code p0193


P0193 FORD - Fuel Rail Pressure Sensor Circuit High Input
Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Engine will not start Possible causes - Excessive resistance in the circuit
- Low or no fuel
- Wiring harness connector of the fuel pressure sensor
- Fuel Rail Pressure Sensor
- Fuel Pump

Mar 17, 2012 | 2004 Ford Explorer Sport Trac

2 Answers

Getting p0193 code for my 2005 ford freestar se


P0193 is "Fuel Rail Pressure Sensor Circuit High Input"
Meaning: Car's computer is reading input voltage from the FRP (Fuel Rail Pressure) sensor as
voltage out of the acceptable range, because the voltage is too above the acceptable range.

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. Check fuel pressure by connecting a fuel pressure gauge to the Schrader
connector on the fuel rail, which you will find under a small (black, usually) plastic protective cap.

If the fuel pressure is indeed too high, your fuel pressure regulator has gone bad.

if fuel pressure is good, check voltage between Sensor connector Vref (Pin#3 LB (light blue)) and
Signal Return (Pin#4 GY/RD (gray/red)), which should be 4.0V-5.5V with key ON.
The acceptable voltage range from the FRP sensor to the car's computer is 4.0-5.5 volts.
What the P0193 code is saying is that the voltage from the FRP sensor is over 5.5 volts,
and therefore it's "High Input."

If voltage from the FRP sensor is bad (out of range high, presumably), then replace the FRP
sensor and reset the OBD-II code.

If the voltage output from the FRP sensor is also good, the car's computer is kaflooey, so
you'd need to replace the car computer (which is costly), so replace the car's computer as a
last resort.

Jun 21, 2011 | 2005 Ford Freestar

2 Answers

I have a 2005 Ford Escape that gave a P0193 code, the car seems to not go when you put the pedal to the floor. Only has about 75000 miles


  • P0193 Fuel Rail Pressure Sensor Circuit High Input. This can be fixed by replacing the sensor. More than likely it has gone bad for some reason (it's hard to tell exactly what caused it).

  • Have a good one!

    Feb 21, 2011 | 2005 Ford Escape

    2 Answers

    Hello, I have A 2005 Ford Escape that threw a code P0193. Wondering What would be the most likely problem. has 119000 miles. thanks


    Two common things can cause this code. High fuel pressure or a bad fuel pressure sensor. The easiest thing you can do is replace the sensor. It is located on the fuel rail on the passenger side of the engine. It will have a vacuum hose and a connector plugged into it. The part is available from the dealer for about a $100. A basic set of tools and about 1/2 hour are all that is needed to replace.

    The fuel line will be under pressure so be aware that fuel will spray all over the place when you remove the sensor. There should be a test port near the sensor with a black plastic cap. If you remove the cap you will be able to push in the schrader valve and release the pressure. Again watch yourself and have some rags handy to catch the fuel spray that comes out of the test port.

    Nov 17, 2010 | 2005 Ford Escape

    2 Answers

    Fuel rail pressure sensor chkt high input p0193


    how to repair a Ford Freestar fuel rail pressure sensor

    Apr 30, 2009 | 2005 Ford Freestar

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