Question about 2004 Mercury Sable

1 Answer

My fuel rail sensor code comes up. What are the engine's symptoms is the sensor is bad?

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Renaissance:

    An user who is expert in 3 categories / brands.

  • Mercury Master
  • 803 Answers

The computer uses this signal to help optimize engine performance and drivability. Without it, it could run rich , run lean or go into limp mode, reducing engine performance for protection.

Posted on Jan 01, 2014

Ad

4 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad
gregs_rockin
  • 274 Answers

SOURCE: Can a vacuum leak cause a check engine code on oxygen sensor? Bad mix air-fuel = bad exhaust emissions?

No it can,t. If you are geting a code that leads to your oxygen sensor, It is shot end has to be replaced. They only last so long before they have to be replaced.

Posted on Oct 20, 2012

SOURCE: have 04 mercury grand marquis check engine light is on for code po452 had that fixed and light still on

Well ---PO 452 is still FTP Sensor Circuit Low Voltage Detected
new sensor or not



If the sensor reads less than .22volts with key on /engine off --you get a hard fault (code)


Check Sensor Connector


Sensor with no pressure or vacuum in tank is 2.4 to 2.8 volts
Key On/Eng Off On scan tool PIDS


You just need a shop with a data base & proper test procedure
or a different tech or different dealer.


I have the 2004 gas engine emissions diagnostic manual for all
2004 fords, as I have a Lincoln LS,so I don't know why a pro
couldn't resolve

Posted on Nov 25, 2012

  • 44621 Answers

SOURCE: there is spark and fuel up to rail but injector wont come on

sounds like the injectors are not getting a signal to squirt or no fuel . Have a pressure test done on the fuel manifold to check pump, pressure regulator pressure and filters.. check injector connection to ECM

Posted on Dec 24, 2013

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Bad fuel injection symptoms


Are my injectors clogged or faulty or is there a sensor issue? How do we know without testing ! and depressed shrader valve fuel dispensed,isn't the proper way to test fuel pressure . Sounds a whole lot like you need to take your vehicle to a qualified repair shop.

Sep 04, 2017 | Saturn L-Series Cars & Trucks

1 Answer

My fuel rail sensor low code (P193) shows. If the sensor is actually bad, what are the engine symptoms?


if the fuel rail pressure is low then the main symptoms are random misfiring and lack of power on acceleration

Jan 01, 2014 | 2004 Mercury Sable

1 Answer

Temp sensor


I'm not a 100% but it sounds like your camshaft position sensor went bad then caused the other codes to come up because the camshaft position sensor tells the computer how much gas it needs. So it started a chain reaction with the fuel level sensor, fuel temperature sensor, and knock sensor codes. The Fuel temp. sensor helps the engine to know how much fuel to inject as well depending on the temp. of the fuel. The fuel pressure sensor senses the amount of fuel in the fuel rail by reading the internal pressure of the rail, so that's what leads me to believe that it's your camshaft position sensor. Particularly if that was the first code that came up. Hope this helps you.

Aug 27, 2013 | Nissan Xterra Cars & Trucks

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

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

Not finding what you are looking for?
2004 Mercury Sable Logo

102 people viewed this question

Ask a Question

Usually answered in minutes!

Top Mercury Experts

yadayada
yadayada

Level 3 Expert

76691 Answers

fordexpert

Level 3 Expert

5537 Answers

Colin Stickland
Colin Stickland

Level 3 Expert

22219 Answers

Are you a Mercury Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...