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Bypass frp lock coolpad3622a


Which operating system is the device running?

Nov 13, 2016 | Cars & Trucks

1 Answer

How do I fix code P0191 on 2013 duramax?


code p0191 refers to rail pressure(FRP) sensor--range/performance problem===causes-- wiring-- FRP sensor.
check for air in the fuel system after a filter change
check FRP sensor and wiring is connected properly.

Mar 06, 2015 | Cars & Trucks

1 Answer

Ford escape code p0191


Possible causes
- Low or no fuel
- High fuel pressure
- Low fuel pressure
- Faulty Rail Pressure (FRP) Sensor
- FRP harness is open or shorted
- FRP circuit poor electrical connection
- Faulty Fuel Pump
- Vacuum leaks
P0191 Ford - Fuel Rail Pressure Sensor Circuit Range/Performance P0191 Ford Description
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.

Aug 12, 2014 | 2008 Ford Escape

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

P0193 CODE


fuel rail pressure sensor "a" circuit high
possible causes : frp signal shorted to vref or vpwr or frp signal open or damaged frp sensor

Sep 09, 2013 | 2005 Lincoln Town Car

1 Answer

Po190 lincoln 2003 ls


DTC P0190 - Fuel Rail Pressure Sensor Circuit Malfunction
Check fuel pressure with a mechanical gauge and check the reading of the Fuel Rail Pressure (FRP) sensor on the scan tool.

When cycling the ignition switch from the off to the run position without starting the engine, the fuel pressure measured on the fuel gauge should match the reading of the FRP sensor on the scan tool.

If the mechanical gauge reading is showing to more than 2 psi higher than the FRP sensor input, replace the FRP sensor.

If the values match, start the engine. With the engine idling, the mechanical gauge will indicate about 10 psi different than the FRP sensor but when the vacuum line at the sensor is disconnected, the values should again match each other.

If the pressure reading matches the FRP sensor reading and the pressure is showing a reading of 30-45 psi Key On, Engine Off (KOEO) and at idle, check for a possible fuel quality issue.

Also check the engine temperature input reading from the Engine Coolant Temperature (ECT) sensor to verify it shows a believable temperature reading.

Possible Causes:
FRP sensor connector is damaged (check pins for damage, and for moisture)
FRP sensor reference (5v) circuit is open or shorted to ground
FRP sensor has failed
Vacuum leak(s) present in the engine

I hope this helps; remember to rating this and just keep in mind that your feedback is important and I'll appreciate your time and consideration if you leave some testimonial comment.

Have a nice day and thanks for using FixYa.
Jose.

Oct 17, 2011 | 2003 Lincoln LS

2 Answers

2005 freestar emission lite on code P10191&P193


Both codes P0191 and P0193 on Ford means Fuel Rail Pressure Sensor Circuit High Conditions. That means that the PCM detected that the FRP sensor signal was more than 4.5v.

Possible causes:
* FRP signal shorted to VREF or VPWR.
* FRP signal open
* Damaged FRP sensor.
* Damaged PCM.

Check ground connections.

Sep 12, 2011 | Ford Freestar Cars & Trucks

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

DTC P0193 2005 Taurus, Where do we start to look.


P0193 means that the fuel rail pressure sensor is out of spec

most common problems are...
FRP signal shorted to VREF or VPWR
FRP signal open
Damaged FRP sensor

if you have limited electrical experience you just replace the FPR sensor

otherwise seek assistance at a dealership or good garage

Mar 27, 2010 | 2005 Ford Taurus

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