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I have a P0193 trouble code - Fuel Rail Pressure Sensor Circuit High Input. I'm told it is probably a bad fuel rail pressure sensor, but I can't find a replacement part online. Can you help? it is a 2004 Taurus

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Posted on Jan 02, 2017

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

  • 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

  • 32 Answers

SOURCE: fuel rail pressure sensor chkt high input p0193

You need to have a code reader to find out what has turned on the check engine light. This could be caused by any number of things.
If you don't know someone with a code reader they can be purchased usually cheaper than what it cost to have a garage check it. I use auto tap software and my lap top. It gives me codes plus I can monitor the engine and many other sensors on my van in real time.

Posted on May 18, 2009

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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

1 Answer

Fuel rail pressure sensor high voltage. P0193


Possible causes
- Low or no fuel
- Faulty Fuel Rail Pressure Sensor
- Fuel Rail Pressure Sensor harness is open or shorted
- Fuel Rail Pressure Sensor circuit poor electrical connection
- Faulty Fuel Pump

Mar 28, 2015 | Cars & Trucks

1 Answer

Where is fuel rail pressure sensor high input located on a mercury mountaineer


If you are talking about a trouble code for the pressure sensor, the sensor may be telling the computer the fuel pressure is too high. The sensor is mounted in the fuel rail on the engine.

Aug 25, 2014 | 2004 Mercury Mountaineer

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

How to fix?


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 (most common cause)
- Fuel Pump

Read more: http://engine-codes.com/p0193.html#ixzz2BZqwz5cc

Nov 07, 2012 | 2006 Toyota Hilux 2.5

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

(You will add more details to the question in the next step)ororAsk your facebook friendsNeed parts?Need parts to fix the P0193 code? Search hundreds of stores at the same time and compare prices

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


Read more: http://engine-codes.com/p0193.html#ixzz263oDqwNA

Sep 10, 2012 | 2005 Hyundai Tucson

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

1 Answer

P0193 fuel rail pressure circuit high input


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).

Jan 12, 2011 | 2004 Ford Explorer Sport Trac

1 Answer

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160....O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)

P0161....O2 Sensor Heater Circuit (Bank 2 Sensor 2)

P0162....O2 Sensor Circuit Malfunction (Bank 2 Sensor 3)

P0163....O2 Sensor Circuit Low Voltage (Bank 2 Sensor 3)

P0164....O2 Sensor Circuit High Voltage (Bank 2 Sensor 3)

P0165....O2 Sensor Circuit Slow Response (Bank 2 Sensor 3)

P0166....O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)

P0167....O2 Sensor Heater Circuit (Bank 2 Sensor 3)

P0168....Fuel Temperature Too High

P0169....Incorrect Fuel Composition

P0170....Fuel Trim (Bank 1)

P0171....System too Lean (Bank 1)

P0172....System too Rich (Bank 1)

P0173....Fuel Trim Malfunction (Bank 2)

P0174....System too Lean (Bank 2)

P0175....System too Rich (Bank 2)

P0176....Fuel Composition Sensor Circuit

P0177....Fuel Composition Sensor Circuit Range/Performance

P0178....Fuel Composition Sensor Circuit Low Input

P0179....Fuel Composition Sensor Circuit High Input

P0180....Fuel Temperature Sensor A Circuit

P0181....Fuel Temperature Sensor A Circuit Range/Performance

P0182....Fuel Temperature Sensor A Circuit Low Input

P0183....Fuel Temperature Sensor A Circuit High Input

P0184....Fuel Temperature Sensor A Circuit Intermittent

P0185....Fuel Temperature Sensor B Circuit

P0186....Fuel Temperature Sensor B Circuit Range/Performance

P0187....Fuel Temperature Sensor B Circuit Low Input

P0188....Fuel Temperature Sensor B Circuit High Input

P0189....Fuel Temperature Sensor B Circuit Intermittent

P0190....Fuel Rail Pressure Sensor Circuit

P0191....Fuel Rail Pressure Sensor Circuit Range/Performance

P0192....Fuel Rail Pressure Sensor Circuit Low In put

P0193....Fuel Rail Pressure Sensor Circuit High Input

P0194....Fuel Rail Pressure Sensor Circuit Intermittent

P0195....Engine Oil Temperature Sensor

P0196....Engine Oil Temperature Sensor Range/Performance

Nov 20, 2010 | 2004 Volvo S80

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