Required fields are marked *. The fuel rail pressure sensor limits the ability for fuel to get left inside of the fuel line. Some causes are a loose fuel gap or a vacuum leak. The mechanism that ensures that the fuel rail is efficient is the fuel rail pressure sensor. In this article, we look at the signs of a bad fuel pressure sensor, its location, function, and the replacement cost if yours is bad. To fix the P0193 code, youll first have to find out whats causing its signal to be too high, which is what this error means. No portions of the video can be copied and re-distributed in any shape or form without written approval from root 66 and or the Clay way Channell! In 05 they abandoned that rear vacuum connection and they put a wye on brake booster hose . 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. You can also check the sensor with a multimeter, but you need to get the given sensors right measurement values. driver by displaying a low fuel pressure warning in the message center, and an engine derate occurs. Any malfunction of the fuel pressure sensor can interrupt the engines proper fuel flow and cause the engines performance to collapse. CATALOG:http://www.autodiagnosticsandpublishing.com/Software_Catalog.htmlFuel Rail Pressure Sensor Quick-FixThe Fuel Rail Pressure Sensor value is used by the ECM to control the Fuel-Pump rotational speed and injection. It does share this5 volt ref with the power steering oil sensor. 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. If the ECU determines the signal from the fuel pressure sensor is too high, it will trigger a P0193 trouble code. FORD FUEL PRESSURE SENSOR LOCATION. Another symptom of a potential problem with the vehicles fuel rail sensor is engine performance issues. Still, there is always a possibility the fuel pressure is actually too high. Service Agreement Program What Is It & Is It Legit? In this video were 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 Escape and you need to replace the fuel pressure regulator heres the video on how to do it I also get into what happens if you continually allow it to run poorly and keep driving it because it still running so I highly recommend you take care of this problem as soon as possible I hope the videos informative for you and you feel a little bit more comfortable about working on your own vehicle.You should watch the whole video . We will be happy to help you. Do the same measurement towards the sensor from the engine control unit plug. GlowShift Fuel Pressure Sensor Thread Adapter Compatible with 6.0L Ford F-250 F-350 Super Duty Power Stroke Diesel 2003-2007 - Installs to The Fuel Filter Housing - Includes O-Ring 232 $999 FREE delivery Mon, Feb 20 on $25 of items shipped by Amazon Small Business Hunting / uneven idle / unstable tickover at idle when hot , cold or randomly cutting out. How can you tell if a fuel pressure sensor is bad? Our certified mobile mechanics can come to your home or office to perform the. 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. 2023 Fuel Rail Pressure Sensor Circuit High Input. 2008- 2010 6.4L Ford Powerstroke. 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. Operating a vehicle while this code is present could cause the car to stall out or hesitate while driving. I also have no codes. The engine may take a few cranks longer than normal to start and in more serious cases may not start at all. By viewing content you are agreeing to these terms. I have parts on order and will schedule an appointment to have Shane install the parts when they arrive. 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. The purge control valve is the Hello. How Long Does an Engine Control Module (ECM) Last? This rail holds the fuel injectors in place. For a better experience, please enable JavaScript in your browser before proceeding. The sensors output is usually given as an analog voltage value proportional to the physical pressure. One of the first symptoms of a potential problem with the fuel rail sensor is hard starting. In this video I go through the process of verifying a bad fuel rail pressure sensor. The sensor is most likely defective if the actual fuel pressure is normal and the sensors circuitry is unimpaired. P0191 is a diagnostic trouble code (DTC) for "Fuel Rail Pressure Sensor Circuit Range/Performance". The P0191 trouble code is considered serious as it is known to cause drivability issues. The power control module (PCM) regulates the amount of fuel that is released into the combustion chambers by controlling the fuel injectors. Repairs covered by 12-month/12,000-mile warranty. The fuel gauge will no longer work if there is an application of reverse charge or corrosion. 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) The electrical tests checking for short/open circuit are usually performed by the ECU (failure P0192, P0193, P01C0 and P01C1) , and you dont need to bother yourself checking them. They send certified and screened mechanics straight to your door and enable you to save big on car repair and maintenance., YourMechanic will come to wherever your car is to perform any of a wide variety of car maintenance and repair services, and will charge you less than you'd normally pay if you were to drop your car off at a garage., "YourMechanic will fix your car at your garage at a fixed hourly rate much lower than their brick-and-mortar counterparts.". 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. Fast, free online quotes for your car repair. The FRP sensor measures the pressure difference between the fuel rail and atmospheric pressure. 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. Signs of a failing fuel cap include the smell of gas, stripped threads, or a cracked cap. Take your time and consider all of the possibilities before concluding that the fuel rail pressure sensor is faulty. You can also check the values coming from it with a diagnostic scanner or by measuring it with a multimeter. The fuel rail sensor is one such sensor that can be damaged quite easily. With YourMechanic you can skip the auto shop altogether. He has been working as a car mechanic for over 10 years, and the majority of them specialized in advanced car diagnostics and troubleshooting. These codes will be displayed with a description string while using the scan tool. Made with in Silicon Valley. This can be verified or ruled out by measuring the fuel pressure using an external gauge. After doing some research the ecu thinks there's a low fuel pressure problem. It means that the signal is above the pre-calibrated limit for a pre-calibrated time made by the manufacturers. Both at -28.9, P0191 code coming on - I already changed the fuel pump, fuel pressure sensor, and driver fuel module. Uses a fuel pressure tester to make a determination as to whether there is a sensor problem or a fuel pressure problem. Toyota Corolla L4-1.6L - Fuel System Inspection - Sacramento, California. Completes a test drive and uses the live data to determine whether the fuel pressure reading is normal. You can also read the trouble codes yourself with an OBD2 scanner. Copyright 2023 Mechanic Base. Here is a list of some common repairs associated with the P0193 code. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. The mechanic will use the OBD-II scanner to retrieve the freeze frame data to find out what the condition of the vehicle was when trouble code P0191 was set by the power control module (PCM). Thanks. 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. Technically, it can mean that either the fuel pressure is too high or there is a problem with the signal from the fuel . The rear intake vac connection is not drilled after 04 , it is so . Home to the World's Fastest 6.7 powerstroke. - Fuel Rail Pressure Sensor PSI at idle: 37-39PSI - Fuel Rail Pressure Sensor PSI at WOT: 37-39 PSI - At some point, usually just as I let off the throttle at the end of my WOT run the FRPS will spike to 49 PSI - Bank 1/2 Upstream O2 Sensors will NOT read rich during WOT until the FRPS reads 49 PSI. Follow the given steps sequentially to achieve the most accurate results. With 5 volts shorted to signal rail pressure will read 0, with the sensor unplugged rail pressure will be 227000 kpa. for $114.99 YourMechanic All rights reserved. Thanks for sharing may God increase your knowledge and wealth. As a result, you lose fuel and have to fill your cars tank more frequently. The pressure control is usually a function of the engine load and speed. 2008- 2010 6.4L Ford Powerstroke. Whats the location of the sensor? Completes a test drive and uses the live data to determine whether the fuel pressure reading is normal. This sensor is on the front of the left fuel rail. In most cases, this will be an electrical issue with the fuel rail pressure sensor or its wiring. Four Seasons A/C System Switch P/N:36646. It is a part of vehicle's fuel system and designed to monitor the fuel pressure that is present at the fuel rail. Remember that you will handle fuel, though, which can ignite if you are unlucky and not cautious. 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. I have a 07 ford f150 5.4 with a p0193 code. Fuel injection lines transfer fuel from the fuel tank to the car engine. Leaking vacuum hoses to fuel pressure regulator, Clean fuel pressure sensor connector plugs, Replace fuel pressure regulator vacuum hoses. This is, in essence, a thick metal tube with fuel injectors attached to it. I really think you have single handedly led me to my poor performance issue on my Audi's driveability. Here is a quick list to check if you get a no start with fuel rail pressure below 1000 kpa. This video is property of the Clay way Channell and root 66 productions. I have Ford Figo Titanium 1.4 dura torque .but I am getting P0193 faulty code.how much the cost of this one.please suggest. Kanstantsin arrived early. In most cases, when you experience the P0193 code, you will most likely only see the check engine light on your dashboard. For 2002-2004 Ford Taurus Fuel Rail Pressure Sensor Connector Motorcraft 93269TQ. A fuel pressure sensor is a pressure sensor that measures the pressure of the fuel in a vehicle's fuel tank. Keeping in mind the higher rpm the less vacuum on intake . 5-volt reference, ground and signal wire (pressure voltage signal), which sends the reading to the ECM / PCM. If the fuel rail sensor malfunctions, it sends incorrect information to the ECU, which changes the settings, causing the fuel supply to be inadvertently interrupted, and your car takes longer to start. Pete fender Pete Fender Jun 4, 2019 #6 P0190 OBD-II Trouble Code: Fuel Rail Pressure Sensor Circuit Malfunction. Repair wirings if you get any strange values from there but the signals are okay when measuring on the sensor. Common signs include the Check Engine Light coming on, the car not feeling right when running, and issues with starting the car. Towing is most likely not required. Usually a bad or failing fuel rail sensor will produce a few symptoms that can alert the driver to a potential issue. The P0191 (https://www.yourmechanic.com/article/p0191-obd-ii-trouble-code-fuel-rail-pressure-sensor-circuit-range-performance-by-jamahl-walker) (fuel rail pressure sensor circuit problem) may just be a symptom - it is reporting suspect fuel pressure on the rail. In order to do proper diagnostics you will need a scan tool, preferably Ford IDS, and . 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. Check the fuel pressure signal in live data from your diagnostic tool on idle. 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. Explained the issues he found and how he will fix it. Some manufacturers can design their sensors to output other form of signals. A faulty fuel rail sensor may send an inaccurate signal to the computer which may cause the engine to experience hard starting. The fuel rail is responsible for the supply of fuel to the fuel injectors. Simply put, it sends this data to the ECU, which changes fuel pressure and injection timing as required. Get a fair and transparent estimate upfront, P0191 OBD-II Trouble Code: Fuel Rail Pressure Sensor Circuit Range/Performance, Get a quote and book an appointment online. Connect the diagnostic scanner and check the values coming from it. How to replace it.. FORD Dealer estimate around $500 to $600. Diesel knock especially when cold. Love your professionalism, very punctual and quick. The labor work costs 50$ to 150$, depending on the workshop. My question is how would I know its my pcm causing my problem cause I have check replaced everything else. All our repairs are backed by our 12-month / 12,000-mile warranty. It takes less pressure to flow fuel at high vacuum, idle, than at wide-open-throttle. Magnus is the owner and main author of Mechanicbase. Our certified mobile mechanics can come to your home or office to perform the A fuel rail pressure sensor will cost you $50 $150, depending on your car model. The most common symptoms of a bad fuel pressure sensor are difficulty starting your car and acheck engine lighton your dashboard. (sometimes Im fun) So you can inform yourself with all the great information that I put in my videos and God bless. 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. Pennzoil vs. Mobil 1 Oil: Differences & Which Is Better? Any injury, damage or loss that may result from improper use of the tools, equipment, or the information contained in this video is the sole responsibility of the user and not Auto Repair Guys. Castrol Edge vs. Mobil 1 Oil: Differences & Which Is Better? That proves the sensor wiring. 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. Your engine will not like this thing in the long run, though! You can test the fuel rail pressure sensor either with a diagnostic scanner or a multimeter. Hence complaining fuel rail sensor. In some rare cases, it can be a problem with too high fuel pressure. The sensor calculates the pressure and sends the data to the ECU. Step 1: Disconnect The Sensor. This light is triggered by the ECU, which detects the defective fuel rail pressure sensor and acts accordingly. Will highly recommend to anyone. You can clean the sensor, but it is doubtful that it will make a difference. A common mistake when diagnosing the P0191 trouble code is overlooking the other components that may need to be repaired and replacing the fuel rail pressure sensor first. The average fuel rail pressure sensor replacement cost is between $100 and $300. Direct Fit O2 Oxygen Sensor For Ford Explorer F150 Pickup Truck . At that point O2s will be pegged rich. 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. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. The piezoelectric effect states that when a crystal such a Quarts is squeezed an electric current is generated. A good fuel filler cap safely seals the fuel tank. A defective fuel rail pressure sensor will affect the performance of your ride. Neither one did what I thought it should vs applied vacuum. If you try to accelerate, your engine will not have an efficient fuel supply, resulting in poor acceleration. Products that I use quite often. I am excited to go back out and re-access my fuel pressure switch. Disclaimer: This site and the author are not responsible of any misuse of the provided information. See further information here. you would only be helping me . Please note that the contrary is not true. This can be caused by a faulty fuel rail pressure sensor, wiring issues, or an actually too high fuel pressure. The statements expressed above are only for informational purposes and should be independently verified. 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. It should have good vacuum at idle . The ECU then decides on the correct fuel supply measure. I have some challlenges with my Cx7 mazda suv. I would suggest a few more checks first. It is important to take this code seriously and have it diagnosed and repaired as soon as possible. Made with in Silicon Valley. Replacement of the fuel pressure sensor is often very straightforward on most car models. The fuel rail sensor, commonly referred to as the fuel pressure sensor, is an engine management component that is commonly found on diesel, and some gasoline injected vehicles. You can absolutely save money by doing it yourself. Here's how to tell if your sensor is bad and how much it costs to replace it. Wiring that is insufficiently connected or chafed, a faulty fuel pressure regulator or faulty fuel pump are things that are often missed when doing a diagnosis and completing a repair. Transit Power & Service Tips. Compare the values to the values you find in the repair manual. To clear the P0193 trouble code, start by determining what triggered it in the first place. YourMechanic offers certified mechanics who will come to your home or office to diagnose and repair your vehicle. Will the Check Engine light Reset Itself After Repair? However, you should refer to the manufacturers service manual, to do this comparison. When the battery was arched, the power surge had went through the vehicle and caused some circuits to fail. My TDCI has suffered intermittent glow plug warning light coming on, turbo cut out and occasional engine cut out. In simple words, this code will get triggered when the car's ECU is not getting the signal from the said sensor. This is a common question about 04's . There is almost nobody or few active FF members here who have connected an external fuel pressure gauge for test purposes. 2015 and newer 6.7L engines use an "integrated fuel pressure and temperature sensor" in 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. costs, Optimize fleet uptime and compliance via mobile vehicle repairs, Partner with us to simplify and scale fleet maintenance. Another common occurrence that could cause You should have your fuel vapor control system for leaks (https://www.yourmechanic.com/services/fuel-is-leaking-from-gas-tank-inspection) by a mechanic that can fill the system with smoke from a smoke machine that helps to locate the leak in the system. Hi Compare reading at the fuel pressure gauge. 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. No matter what you try, the engine will often not start again. This vacuum hose often leaks fuel with sensor damaged.9) To test the Fuel Rail Pressure Sensor, disconnect the sensor, jump sensor signal to the 5 volt reference, then jump signal to sensor ground. To do this, youll have to connect the alligator clip to the ground and then attach the test lights probe to the signal wire at the sensors connector. The fuel pressure sensor is located in the fuel line near the fuel tank. In turn, this chamber creates a pressure differential at the top of the injector which make it open and close. Most of the time, there are other components that cause this trouble code. If it moves but is too high related to the RPM, you most likely have a broken fuel pressure regulator or the vacuum hoses to it. The fuel pressure sensor ensures that your cars engine cylinders receive the right amount of fuel at the right pressure. Uses a fuel pressure tester to make a . Check the fuel rail pressure sensor circuit. 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 $$$$$$$ !! The most popular service booked by readers of this article is Fuel System Inspection. The P0193 code indicates that the engine control unit gets a too high signal from the fuel rail pressure sensor. All Rights Reserved. There is communication though to the scanner/ code reader but says the EVAP is not supported. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. Find out more on this video. All Rights Reserved. This improves performance and efficiency while also reducing emissions and the amount of unburnt fuel. 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. That's it for the Fuel Rail Pressure Sensor Quick-Fix. Sensors in cars are susceptible to damage from constant exposure to pollutants such as dirt, dust, and heat. Once you have a second measurement source, you can make a comparison between the two measurements. Except for the Ford 6.7 L Powerstroke, a low rail pressure reading, with no codes, will not cause a no start. Any use of this information is at your own risk. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. 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. The Trainer. The Check Engine Light can also be activated by a wide variety of other issues, so having the computer scanned for trouble codes is highly recommended. Diesel Pressure Sensor TestingAmazon Printed Bookshttps://www.createspace.com/3786463Amazon Kindle Editionhttp://www.amazon.com/Diesel-Common-Injection-Autom. This can also cause damages to your engine in the long term. Come join the discussion about performance, bulletproofing, modifications, classifieds, troubleshooting, maintenance, and more! You will need an OBD-II scanner and an oscilloscope. Check if the pressure value changes while you rev up. He explained everything to me in detail on what I needed to know about my car. Magnus you are awesome. Get a fair and transparent estimate upfront. Any suggestions pleae? If right after the power surge happened and now you have a code for the fuel pressure and the P2271 trouble code definition O2 Sensor Signal Stuck Rich Bank 1 Sensor 2 What the P2271 code means This code indicates the What What the P3427 code means When starting, and when the vehicle is operating under heavy weight, the engine will operate in V8 mode. Copyright 2023 Mechanic Base. This doesn't check the mechanical function of the sensor you have to swap a known good one in. Certified Automotive Diagnostic Technician. Reason for car continually stalling can't be found by dealerships, Fuel gauge light and level indicator problems. Save my name, email, and website in this browser for the next time I comment. Measure the fuel pressure sensor using the measuring diagram from your repair manual for your specific car model. The purpose of this is to confirm that the sensors circuitry is unimpaired. There could be a problem with the fuel pressure, though, which will cause performance issues with your engine. Your email address will not be published. In order to do proper diagnostics you will need a scan tool, preferably Ford IDS, and . You can also notice strange problems with the performance of your car engine. This is how a professional would diagnose the P0193 code. Symptoms of a Bad or Failing Manifold Absolute Pressure Sensor (MAP Sensor), Symptoms of a Bad or Failing Fuel Pump Shut Off Switch. A fuel volume gauge may also be needed to do this test. Certified Automotive Diagnostic Technician. The fuel gauge assembly indicates your fuel level. And the corresponding sensor, which is usually the only electrical component on the fuel rail, will almost definitely be at its end. Improper supply of fuel to the engine will cause an unexpected stall. I pulled the wiring harness on my pcm and had some pins bend I fixed them and rest everything still have the code. After pinpointing and replacing the faulty component, youll still have to delete the trouble code from the vehicles memory using an OBD2 scan tool.
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