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Anonymous Posted on Sep 10, 2012

P0193 - fuel rail pressure sensor circuit high input

Replaced fuel regulator and still the same problem occurs. Really in need of a solution

2 Answers

Randy Ohler

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  • Hyundai Master 14,585 Answers
  • Posted on Apr 19, 2015
Randy Ohler
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If you have replaced the sensor, check the wires at the back of the plug. Pull them one at a time, if they stretch it is a broken wire. When you get a high reading code. It is either it's unplugged or a wire is broken.

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  • Expert 58 Answers
  • Posted on Sep 10, 2012
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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
p0193 - fuel rail pressure sensor  circuit high in - 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

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5 Related Answers

Tommy Gall

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  • Posted on Sep 26, 2008

SOURCE: trouble starting, keeps cranking, backfires,replaced

if you at any point have changed you´re timing belt you might have timed it a tooth or two of

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Anonymous

  • 1 Answer
  • Posted on Feb 01, 2009

SOURCE: 2002 Hyundai Sonata wont pass smog

CA you can take the car to a referree and get a one time waiver if you have spent a minimum of $450 on repairs not including smog fees. Gives you two years to get it fixed. Smog Referee Call Center
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You can also sell the car to the state for "up to" $1,000

Anonymous

  • 2 Answers
  • Posted on Feb 18, 2010

SOURCE: P0183 Fuel Temperature Sensor A

i have the same problem with my 04 santa fe PO183 at first and now PO335 come up. and now it wont start, did anyone find the problem?

johnjohn2

Johnny Brown

  • 5763 Answers
  • Posted on Jun 21, 2010

SOURCE: Where fuel pressure regulator located on a 2004

Are you sure the fuelpump is good,even a bad regulator you should still have fuel preasure,the regulator if its not part of the pump should be on the fuel rail,

Anonymous

  • 1874 Answers
  • Posted on Sep 12, 2010

SOURCE: P0183 Fuel Temperature Sensor A Circuit High

EOBD Code: P0183 - Fault location: Fuel temperature sensor A - high input. Probable cause: Wiring short to positive, fuel temperature sensor bad, ECM bad.

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1999 mustang v6 getting code p0193 won't start Any suggestions as to what is wrong?

Fuel pressure outside nominal range. Check pressure at fuel rail.
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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.
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P0193

http://m.youtube.com/?#
Go to you tube and look for how to install fuel pressure regulator.
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X-type P0193

P0193 Fuel Rail Pressure Sensor Circuit High Input
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smart zed-bull key programmer
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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
5helpful
1answer

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
8helpful
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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.
15helpful
1answer

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).
1helpful
1answer

Hur byter jag växellädsolja på

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

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