Actually, the used reference of the sensor could differ from the reference used by the pressure gauge and lead to false interpretation. This is a common occurrence. If you do not have the knowledge or do not have the right tools, you may have difficulty following this guide. The sensor calculates the pressure and sends the data to the ECU. Flat rate pricing based on labor time and parts, Trusted mechanics, rated by thousands of happy car owners, Hand-picked, community-rated professionals, Over 25,000 topics, from beginner tips to technical guides, Check cars for recalls, common issues & maintenance costs, Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance. There is communication though to the scanner/ code reader but says the EVAP is not supported. LEARN MORE. The Bosch Piezoelectric (crystal) injector operates using a crystal stack, usually Quartz, that changes size when energized. When the sensor has an issue it can cause problems with the performance of the vehicle. First, lets take a look at the signs to look for. MK7 , 2.2 or 2.4 TDCI , Euro 4 , 06 to 61 plate , so mid to late 2006 up till the end of 2011. Magnus is the owner and main author of Mechanicbase. In some car models, the fuel rail pressure sensor can also be installed on the fuel line, but this is quite rare. Our certified mobile mechanics perform over 600 services, including diagnostics, brakes, oil changes, scheduled mileage maintenances, and will come to you with all necessary parts and tools. Automatic Transmission Wont Shift Into Third Gear, P0456 Code - What It Means and How To Fix It, P0496 Code Meaning, Causes, Symptoms (& How To Fix), P0300 Code - Meaning, Causes, Symptoms (& How to Fix it), P0440 Code - Meaning, Symptoms, Causes (& How to Fix it), P1450 Code Meaning, Causes, Symptoms (& How To Fix), P0442 Code What It Means and How To Fix It, P0455 Code What It Means and How To Fix It, P0700 Code - What It Means and How To Fix It, P0012 Code Meaning, Causes, Symptoms (& How To Fix), Car Wont Accelerate But RPMs Go Up: Causes & Fixes. The P0193 code may cause any of the following issues: Medium The P0193 code will most likely not cause any issues at all with your car except a check engine light on the dashboard. So, had to go to AUTO ZONE and had them test it and the code shows P0193 FUEL RAIL PRESSURE SENSOR. This light is triggered by the ECU, which detects the defective fuel rail pressure sensor and acts accordingly. Any suggestions pleae? How to replace it.. FORD Dealer estimate around $500 to $600. Will highly recommend to anyone. This code is triggered when the signal from the fuel pressure sensor, which is mounted on the fuel rail, is too high. Following these three simples steps will help you to get a clear statement. Whenever this light comes on on your dashboard, you should make a trip to the nearest mechanic. You can also notice strange problems with the performance of your car engine. P0213 OBD-II Trouble Code: Cold Start Injector 1 Malfunction, P2006 OBD-II Trouble Code: Intake Manifold Runner Control Stuck Closed Bank 1, P2240 OBD-II Trouble Code: O2 Sensor Positive Current Control Circuit/Open Bank 2 Sensor 1, P2271 OBD-II Trouble Code: O2 Sensor Signal Stuck Rich Bank 1 Sensor 2, P3427 OBD-II Trouble Code: Cylinder 4 Deactivation/Intake Valve Control Circuit Low, Black smoke and rich fuel the codes P0191 & P0452 and short trim bank 1 & 2. Electrical tests of the rail pressure sensor The pressure sensors are either analog or digital and usually made upon one of these sensing elements strain gauges a variable capacitance a piezo crystal (resistive/voltage based) After pinpointing and replacing the faulty component, youll still have to delete the trouble code from the vehicles memory using an OBD2 scan tool. You can also read the trouble codes yourself with an OBD2 scanner. The Fora platform includes forum software by XenForo. The Clay Way nor makers,producers and installers will not responsible for ANY damage that happens to your Vehicle or if we are incorrect about any of my information contained in this or any of our videos ,any accidents that happen while youre performing the procedures that We explain And you perform or anyone else perform. (sometimes Im fun) So you can inform yourself with all the great information that I put in my videos and God bless. If the fuel pressure is normal, they will use an oscilloscope to test the connector and wiring of the fuel rail pressure sensor. Signs of a failing fuel cap include the smell of gas, stripped threads, or a cracked cap. I can read Ford specific PID's. I was reading/logging Fuel Rail Pressure, no FMEM (not sure what FMEM is though) and Raw Fuel Rail Pressure Signal, no FMEM (this is the output voltage of the sensor, basically what the ECU sees and translates to a pressure). If the fuel pressure is greater than 35 psi, then Hi there. you would only be helping me . I also have no codes. In turn, this chamber creates a pressure differential at the top of the injector which make it open and close. You can absolutely save money by doing it yourself. You shoul see close to 5 volts and zero volts respectively. The sensors output is usually given as an analog voltage value proportional to the physical pressure. It means that the signal is above the pre-calibrated limit for a pre-calibrated time made by the manufacturers. Diesel Pressure Sensor TestingAmazon Printed Bookshttps://www.createspace.com/3786463Amazon Kindle Editionhttp://www.amazon.com/Diesel-Common-Injection-Autom. Here is a more detailed list of the signs of a bad or failing fuel rail pressure sensor to look for: As already mentioned, the fuel rail supplies the cylinders with the same fuel. Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? I have a 2005 mustang v6 when i accelerate i get what it seems to me would be a miss but have replaced wires plugs coil what is your advice or diagnosis, Can a bad fuel rail sensor cause a misfire I'm having a misfire in cylinder 1 and cylinder 2 I change all spark plugs spark plug wiring all coils and I'm still having a misfire I also changed the fuel rail. Check the fuel rail pressure sensor circuit. A faulty fuel rail sensor may send an inaccurate signal to the computer which may cause the engine to experience hard starting. Disclaimer: This site and the author are not responsible of any misuse of the provided information. In simple words, this code will get triggered when the car's ECU is not getting the signal from the said sensor. Toyota Corolla L4-1.6L - Fuel System Inspection - Sacramento, California. It is a critical part of the fuel injection system in some vehicles. Compare reading at the fuel pressure gauge. The rear intake vac connection is not drilled after 04 , it is so . I have a 07 ford f150 5.4 with a p0193 code. Reason for car continually stalling can't be found by dealerships, Fuel gauge light and level indicator problems. If you are still not sure where the sensor is located, the owner's manual should have information . How to Test a Fuel Pressure Regulator - AxleAddict The sensor is used to monitor the fuel pressure. The FRP sensor nominal output varies between 0.5 and 4.5 volts, with 0.5 volts corresponding to 0 MPa (0 psi) gauge and 4.5 volts corresponding to 26 MPa (3771 psi) gauge. I replaced the FRP sensor and still have the code I have checked my wiring have 5 volts checked the ground everything checks out the engine actually is running good just lost some mpg. Symptoms of a Bad or Failing Manifold Absolute Pressure Sensor (MAP Sensor), Symptoms of a Bad or Failing Fuel Pump Shut Off Switch. Here is a list of some common repairs associated with the P0193 code. Usually a bad or failing fuel rail sensor will produce a few symptoms that can alert the driver to a potential issue. 04 F150 5.4 fuel pressure sensor vacuum line location - Ford Truck A guide on how to diagnose & repair problems causing the P0193 trouble code. The engine may take a few cranks longer than normal to start and in more serious cases may not start at all. Certified Automotive Diagnostic Technician. The Specs and Initial diagnostic process is pretty standard. However, precautions are to be made, while checking the output using an oscilloscope. I constantly make these videos that show you how to use your tools and show the techniques that we use in our auto repair shop every day. 2015 and newer 6.7L engines use an "integrated fuel pressure and temperature sensor" in To test the fuel rail pressure sensor, you first need a multimeter. Symptoms Of A Bad Fuel Rail Pressure Sensor. You will need an OBD-II scanner and an oscilloscope. In this video we're gonna show you that we had a bad fuel pressure regulator and exactly how we determined that this vehicle was running poorly and smoking heavily so if you have a Ford. To check the precision of the sensor, you will need to use a secondary measurement tool like a pressure gauge. Two wires are used to supply the sensor and the third provides the measurements. Sensors in cars are susceptible to damage from constant exposure to pollutants such as dirt, dust, and heat. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.0 off as a credit towards the repair. I hope the videos helpful for you!And Thank you for viewing!Have a great dayYou cant really break it if its already broken! Please subscribe!!! If the ECU is unable to make adjustments, your vehicle is at high risk of developing unnecessary problems. Technically, it can mean that either the fuel pressure is too high or there is a problem with the signal from the fuel . Once the problem has been diagnosed, you will be provided with an upfront quote for the recommended fix and receive $20.00 off as a credit towards the repair. This is, in essence, a thick metal tube with fuel injectors attached to it. This, of course, can happen if the amount of fuel making it to the engine isn't enough to sustain the load of the engine. I do not sell your information I do not solicit you. P0190 OBD-II Trouble Code: Fuel Rail Pressure Sensor Circuit Malfunction. And all it does is help me send you stuff . I have about 298,000 miles on the vehicle. It is a part of vehicles fuel system and designed to monitor the fuel pressure that is present at the fuel rail. Still, this only serves as a stop-gap solution, which will get you to the nearest service station or workshop. The purpose of this is to confirm that the sensors circuitry is unimpaired. Pennzoil vs. Mobil 1 Oil: Differences & Which Is Better? Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? There could be a problem with the fuel pressure, though, which will cause performance issues with your engine. Jul 29, 2010. Fuel Pressure Sensor Diagnostics | Tech Minute Babcox Media 9.22K subscribers Subscribe 176K views 5 years ago Andrew Markel explains what a P0191 code means, and how to ensure an accurate. The fuel delivery pressure switch is located at the top left of the engine in the fuel injection pump supply tube, forward of the secondary fuel filter. The P0193 code indicates that the engine control unit gets a too high signal from the fuel rail pressure sensor. You can also try to see in the scanner if you get any rpms to the PCM while cranking, if not it may be a problem with the timing sync like a crankshaft sensor or camshaft position sensor. The FRP sensor measures the pressure difference between the fuel rail and atmospheric pressure. Amongst other stuff, I have tested the sensor on the fuel rail following this short vid; https://www.youtube.com/watch?v=85IP8eY1nXY Although your car may seem to run fine even when the P0190 trouble code is on, we wouldnt recommend driving it like that in a long run. How Long Does an Engine Control Module (ECM) Last? I pulled the wiring harness on my pcm and had some pins bend I fixed them and rest everything still have the code. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. That's it for the Fuel Rail Pressure Sensor Quick-Fix. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics make house calls in over 2,000 U.S. cities. 5-volt reference, ground and signal wire (pressure voltage signal), which sends the reading to the ECM / PCM. But first, you'll start your tests with a quick preliminary check: 1. You can clean the sensor, but it is doubtful that it will make a difference. I have no 5 volt ref from PCM to fuel rail pressure sensor. Information given in this video does not guarantee the desired outcome. A forum community dedicated to Ford F-series owners and enthusiasts with a Power Stroke diesel engine. Fuel pressure sensor testing?? - Ford Owners Club Uses a fuel pressure tester to make a determination as to whether there is a sensor problem or a fuel pressure problem. Definitely recommend him for getting the job done. It takes less pressure to flow fuel at high vacuum, idle, than at wide-open-throttle. But the actual fuel pressure might be too high, as well. An illuminated Check Engine Light is another symptom of a potential problem with the fuel rail sensor. . Replace if necessary. Completes a test drive and uses the live data to determine whether the fuel pressure reading is normal. Please note that the contrary is not true. Get a fair and transparent estimate upfront. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. It can also happen that the engine is running too rich, and this will cause the car to have performance issues and black smoke from the exhaust pipe. The fastest way of fixing the P0190 trouble code is by checking the fuel rail pressure sensor's electrical circuit. In this video I go through the process of verifying a bad fuel rail pressure sensor. This is a common question about 04's . 3 easy steps to diagnose a rail pressure sensor problem Love your professionalism, very punctual and quick. The fuel sending unit is the component in the fuel tank that the fuel pump is mounted to. The high pressure fuel injection pump increases the fuel pressure up to 169.96 MPa (24,650 psi) and delivers fuel to the fuel rails through 2 high pressure lines, 1 per . Copyright 2023 Mechanic Base. Improper supply of fuel to the engine will cause an unexpected stall. This process works to reduce tailpipe emissions. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Any action on the car and its consequences are under your sole responsability. Thanks. With 5 volts shorted to signal rail pressure will read 0, with the sensor unplugged rail pressure will be 227000 kpa. Copyright 2023 Mechanic Base. Flat rate pricing based on labor time and parts, Hand-picked, community-rated professionals, Trusted mechanics, rated by thousands of happy car Need help with fuel pressure test | V6 Mustang Forums There may also be an increase in fuel consumption, which can be costly. Magnus is the owner and main author of Mechanicbase. Ed. Made with in Silicon Valley. This pressure gauge should be connected to the service port, while considering all the safety aspects. If you try to accelerate, your engine will not have an efficient fuel supply, resulting in poor acceleration. Do not Attempt!\r\r\rAMAZON ASSOCIATES DISCLOSURE\rAuto Repair Guys is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com\r\r*Disclaimer\rWe, Auto Repair Guys, are not responsible for property damage or injury incurred as a result of any of the information contained in this video. owners, Over 25,000 topics, from beginner tips to technical A faulty rail sensor may upset the air fuel ratio and cause the vehicle to experience performance issues such as a decrease in power, acceleration, and fuel efficiency, and in some cases may even experience stalling. YourMechanic All rights reserved. He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. The piezoelectric effect states that when a crystal such a Quarts is squeezed an electric current is generated. TOYOTA SOARER LEXUS SC430 Genuine Quarter Belt Moulding RH 75671-24010 OEM, StopTech For 2001-2005 Mazda Miata Disc Brake Rotor Rear Right 126.45062SR. Fuel Rail Pressure Sensor Diagnosis JL's Auto Solution 7.53K subscribers Subscribe 128K views 2 years ago In this video I go through the process of verifying a bad fuel rail pressure sensor.. The sensor sends this signal to the computer, which then uses it to make adjustments to the vehicles fuel and timing. It measures the fuel pressure at the injectors. Pennzoil vs. Mobil 1 Oil: Differences & Which Is Better? If your vehicle is displaying any of the symptoms above, or you suspect that your fuel rail sensor may be having an issue, have the vehicle diagnosed by a professional technician, such as one from YourMechanic, to determine if the sensor should be replaced. Will use u and recommend u to others!!! However, if these particular failures are reported, it makes sense to check the wires and the complete circuit, before concluding that the sensor is faulty. In addition to these DTC, other manufacturer specific DTCs (P1XXX) can also pop-up. 24K views 3 years ago The purpose of this test is to check the fuel system pressure characteristics on a common rail diesel engine by using the fuel rail pressure sensor. FORD FUEL PRESSURE SENSOR LOCATION. Last but not least, you can read the sensor values using the scan tool and look for variations. Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST. WHERE IS THE FUEL PRESSURE SENSORIf you have Ford and you are trying to find where the fuel pressure sensor is located we will explain in this video the usual location and where you can expect to find the fuel pressure sensor. The fuel rail pressure sensor limits the ability for fuel to get left inside of the fuel line. @Des Any malfunction of the fuel pressure sensor can interrupt the engines proper fuel flow and cause the engines performance to collapse. Remember that you will handle fuel, though, which can ignite if you are unlucky and not cautious. I would suggest a few more checks first. Certified Automotive Diagnostic Technician. The most popular service booked by readers of this article is Fuel System Inspection. 2023 In some cases, the sensor is combined with a temperature sensor to form a four wire sensor. There could be some different causes of this, and in this article, you will learn what you need to know about the P0193 trouble code. Replace sensor if faulty. Presented using advanced software CG animation technology to help you understand. Then, make sure the fuel pump can deliver a full charge, by either actuating the fuel pump using a scanner or manually energizing the fuel pump at 100% load. Follow the given steps sequentially to achieve the most accurate results. One fuel pressure sensor is for the low pressure pump and one fuel pressure sensor is for the high pressure pump. Check Engine Light diagnostic The fuel pressure on the rail is controlled by Hi there. Everything is purchased by us!\r\rThe video is meant for entertainment purposes only. Please see our, Jeep Cherokee L4-2.4L - Car is shaking or vibrating Inspection - Houston, Texas, Ford Explorer - Car is not starting - Houston, Texas. He also arrived 15 minutes early and had prepared for the visit by contacting me the day prior to get further clarification. 6.7 powerstroke high pressure fuel diagnostics | Ford Powerstroke Still, there is always a possibility the fuel pressure is actually too high. Fuel Rail Pressure Sensor Circuit Range/Performance - Engine-Codes.com Uses a fuel pressure tester to make a . The fuel rail sensor is one such sensor that can be damaged quite easily. Raymond did a great job however I was charged for two hours labor and he was only here less than 45 minutes. Kanstantsin arrived early. Get a fair & transparent quote instantly before booking. A fuel volume gauge may also be needed to do this test. The labor work costs 50$ to 150$, depending on the workshop. The Trainer. I have disconnected sensors to see if it will give an engine check light or code but none. The FRP sensor measures the pressure difference between the fuel rail and atmospheric pressure. P0191 OBD-II Trouble Code: Fuel Rail Pressure Sensor - YourMechanic P0193 Code: What It Means And How To Fix It - Mechanic Base Whether your car is a RAM with a Cummins engine or a Ford, or a Volvo or any other brand, a scan tool is your first ally to find out whether your rail pressure sensor is faulty or not. 8 Reasons Why Your Car Engine Is Sputtering And How To Fix It, 3 Symptoms Of A Bad Tire Pressure Sensor and Replacement Cost, P0190 Code - What It Means and How To Fix It, Symptoms Of A Bad Airbag Sensor and Replacement Cost, 8 Symptoms Of A Bad Fuel Pump and Replacement Cost, 8 Symptoms Of A Bad Fuel Injector and Replacement Cost, 5 Symptoms Of A Bad Fuel Pump Relay and Replacement Cost, 15 Different Types of Sensors in a Car and Their Functions, 4 Symptoms Of A Bad Steering Angle Sensor and Replacement Cost, 7 Signs Of A Bad Intake Air Temp Sensor and Replacement Cost, Car Wont Accelerate But RPMs Go Up: Causes & Fixes. In some rare cases, it can be a problem with too high fuel pressure. How to Replace a Fuel Rail Sensor | YourMechanic Advice The average fuel rail pressure sensor replacement cost is between $100 and $300. All Rights Reserved. As a result, you lose fuel and have to fill your cars tank more frequently. The following P-codes (DTCs) are OBD II failure codes and generic to all OBD II compatible cars and could appear, if your fuel rail pressure sensor is faulty. But when driving conditions are light, the engine will deactivate 4 of the 8 cylinders, thereby P0452 means there is a issue with the fuel tank pressure sensor or the evaporative pressure sensor. A fuel pressure sensor is a pressure sensor that measures the pressure of the fuel in a vehicle's fuel tank. Leaking vacuum hoses to fuel pressure regulator, Clean fuel pressure sensor connector plugs, Replace fuel pressure regulator vacuum hoses. The fuel pressure sensor is located in the fuel line near the fuel tank. Check somewhere under the intake manifold, and Im sure that you will find the injectors, fuel rail, and the fuel rail pressure sensor. Transit Power & Service Tips. You can also check the values coming from it with a diagnostic scanner or by measuring it with a multimeter. This is due to the newer smart vehicle ECMs and the rationality checks done on the Fuel Rail Pressure Sensor.Finally, if faced with a Fuel Rail Pressure Sensor code, first test the wiring as mentioned here. The high pressure fuel injection pump increases the fuel pressure up to 169.96 MPa (24,650 psi) and delivers fuel to the fuel rails through 2 high pressure lines, 1 per . Jiffy Lube Vs. Valvoline Oil Change: Differences & Which Is Better. We will be happy to help you. Jiffy Lube Vs. Valvoline Oil Change: Differences & Which Is Better? We demonstrated where the fuel pressure sensor is located on Ford Focus third generation but the video may be helpful on other ford cars too:Ford Focus Fuel Pressure Sensor LocationFord Fiesta Fuel Pressure Sensor LocationFord Mustang Fuel Pressure Sensor LocationFord Flex Fuel Pressure Sensor LocationFord Edge Fuel Pressure Sensor LocationFord Escape Fuel Pressure Sensor LocationFord Explorer Fuel Pressure Sensor LocationFord Fusion Fuel Pressure Sensor LocationFord Taurus Fuel Pressure Sensor LocationFord F150 Fuel Pressure Sensor LocationFord Expedition Fuel Pressure Sensor Location High Pressure Fuel Sensor: https://amzn.to/31DLy7P Mechanic Tool Set: https://amzn.to/2UUwqzR Scanner That We Use: https://amzn.to/30f3HbC Check out our Amazon Store for the tools and parts that we use: https://www.amazon.com/shop/worldmechanics Our Website: http://mechaniclifestyle.com\r\r Our Baby Girl Channel: https://goo.gl/WiVs8Y\r Our Second Car Channel: https://goo.gl/XB6fHq\r Honest Product Review Channel: https://goo.gl/sMPQXk\r GoFundMe Link: https://goo.gl/pUife3\r\rOur Most Popular Videos:\r Bumper Repair: https://goo.gl/XBe4Sh\r Missing Wheel Lock: https://goo.gl/5n4a5i\r Bearing Replacement: https://goo.gl/JSNDnZ\r Restore Headlights: https://goo.gl/qVhDkf\r\r Cameras \u0026 Gear Used For This Video \r\rCameras\rPanasonic Lumix FZ300: http://amzn.to/2BNWtNA\r\rTripod\rPolaroid 72-inch: http://amzn.to/2iVTmP4\r\rMicrophone\rPolaroid Pro Video Condenser: http://amzn.to/2krpSsA\r\rLight\rNEEWER 160 LED CN-160 Dimmable: http://amzn.to/2jjg9Bd\r\rComuter for editting\rLenovo ideapad 310: http://amzn.to/2kqUNFl\r\r Other Equipment and Gear that I use \r\rCamera\rSony HD Video Recording HDRCX405: http://amzn.to/2jk8nqB\r\rGoPro HERO5 Black: http://amzn.to/2ktNKfj\r\rExtra Computer For Editting\rLenovo Ideapad 510: http://amzn.to/2ktOuB7\r\r Like Us on FACEBOOK: https://www.facebook.com/worldmechanicsofficialpage \r\r LIKE \u0026 SUBSCRIBE for MORE DIY VIDEOS that could SAVE YOU BIG $$$$$$$ !! Another symptom of a potential problem with the vehicles fuel rail sensor is engine performance issues. In most cases, the fault will be due to a faulty fuel rail pressure sensor, its connector, or the wiring. If the engine computer detects an issue with the fuel rail sensor signal or circuit, it will set off the Check Engine Light to notify the driver of the issue. Direct Fit O2 Oxygen Sensor For Ford Explorer F150 Pickup Truck . if you want to reach out to me and get a message to me hit me up on clays ac and auto repair on the facebook And if you have any questions its easier to message me straight through FacebookWhy should you Subscribe to my channel ? So please be kind and enjoy!! The power control module (PCM) regulates the amount of fuel that is released into the combustion chambers by controlling the fuel injectors. At that point O2s will be pegged rich. This is probably the first symptom you will notice. Home to the World's Fastest 6.7 powerstroke. Hunting / uneven idle / unstable tickover at idle when hot , cold or randomly cutting out. Some Ford cars with direct fuel injection often have 2 fuel pressure sensors. Bad Fuel Rail Pressure Sensor Symptoms: Fix, Replacement Cost - Motor Verso This can be caused by a faulty fuel rail pressure sensor, wiring issues, or an actually too high fuel pressure. If the ECU determines the signal from the fuel pressure sensor is too high, it will trigger a P0193 trouble code. I got a code P0191 for the fuel rail pressure and a code P0237 for turbocharger boost. The check engine light is an indication that something is going wrong in your engine that needs immediate attention. Fuel Rail Pressure Sensor Diagnosis - YouTube And it cost you Nothing ! Step 1: Disconnect The Sensor. Symptoms of a Bad or Failing Fuel Rail Sensor - YourMechanic Hi Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.0 off as a credit towards the repair. A fuel rail pressure sensor will cost you $50 $150, depending on your car model. 2008- 2010 6.4L Ford Powerstroke. driver by displaying a low fuel pressure warning in the message center, and an engine derate occurs. Primary reason for this is that very few Foci have a factory schrader valve on the fuel rail; so most people test the system using only a scan tool. This includes the sensor itself, its connector, and the wiring that goes to the ECU.
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