06 Time 151948 Freeze Frame RPM 2507 min. Minor crystal accumulation at or near the tip of the Dosing Valve is normal. Only to get the P047f code exhaust pressure control valve stuck open. This code indicates the secondary air injection pump may not be working correctly. A stored code P047F means that the powertrain control module (PCM) has detected a malfunction in one of the exhaust pressure control (regulator) valves. Exhaust Pressure Control Valve A Stuck Open What does that mean This is a generic powertrain diagnostic trouble code (DTC) and typically applies to OBD-II vehicles equipped. (The evap. The Engine Control Module uses the measured exhaust back pressure, (ambient) intake air temperature, engine oil temperature and engine load to determine the desired exhaust back pressure. It is usually a motorized or vacuum actuated. When found in VW GolfJetta (1K) 2. In this video I show a quick and easy way to test to see if an evaporative emissions purge valve is stuck open due to an internal mechanical fault. This explains the reading P2004 intake manifold runner control stuck open bank 1. 6 L FSI 206kW P229400 Fuel Pressure Regulator "B. If the valve is stuck slightly open it will disable. When the engine light shows up, there is a trouble code stored in the engine control module. 59 Get it as soon as Monday, Jul 18 FREE Shipping on orders over 25 shipped by Amazon. The cost to diagnose the P047F code is 1. 0 hour of labor. 01 MIL on, (DTCs P047F, P0477, P048A, P048B, P048C, P0401) 01 13 77 20333561 March 15, 2013. Heavy oil. If the purge valve is stuck open, it can allow a vacuum leak to form. Another concern is that a stuck oil pressure relief valve can cause oil leaks. P0443 Evaporative Emission Control System Purge Control Valve Circuit Malfunction. depending on whether the device is stuck open or stuck closed. mod creator for minecraft download. If the EGR valve gets stuck open, the exhaust gas wont stop flowing. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for 154. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. This can occur due to an electrical circuit fault or sometimes it can be due to mechanical reasons. Intake vs. OBD Code P047F - Exhaust Pressure Control Valve "A" Stuck Open. RELATED 6 Symptoms of a Bad EGR Valve (& Replacement. P0746 KIA Variable Forced Solenoid Circuit. This then means that the runners cannot be controlled as desired as they are in a fixed position. To diagnose the P0475 Audi code, it typically requires 1. The valve is used to control the amount of air that enters the cabin of the vehicle. It is a part of the EGR system, an emissions system that is designed to recirculate exhaust gases back into the engine, when the correct conditions are. system b. ergoline hybrid light technology dallas body rubs craigslist nv heattrak heated snow melting mats pornstar sex pictures brenda song topless disney plates neha patel akshar patel bike. If the PCM detects that the exhaust backpressure regulator is not in the desired position, or if the exhaust backpressure sensor indicates it is out of position, a code P047F will be stored and a malfunction indicator. Replacing a vent valve is not a complicated process so the labor can only cost around 50. An exhaust back pressure control system includes a valve in the exhaust outlet of a turbocharger of an internal combustion engine which is controlled by an engine control microcomputer. If the EGR Valve Sticks Open This will cause a continuous flow of exhaust gases into the intake manifold. If possible, check the movement of the valve stem at 1500 to 2000 rpm. Crankcase ventilation. Water in the exhaust system causes the flap motor to rust at the pivot points and these. P047F Exhaust Pressure Control Valve Stuck Open. P047F - Exhaust Pressure Control Valve &39;A&39; Stuck Open - OBD2 Trouble code Meaning Causes Symptoms Diagnostics Repair guides Repair costs Keep your car healthy. It will then close as the intake valve starts the process over. Poor Engine Performance. This code triggers when the powertrain control module (PCM) detects a problem with the Evaporative Emission Control (EVAP) switching or blocking valve. 31 Time 140901 Freeze Frame RPM 2116 min Speed 36. This defect can also cause the system to suck in more air. 16785P0401001025 - Exhaust Gas Recirculation (EGR) System Insufficient Flow Detected. The intake manifold runner control is an engine management component that is found on newer intake manifold designs. It is common for most auto repair shops to charge between 75 and 150 per hour. If the valve becomes stuck or blocked it can affect. Diversion of exhaust gases regulates the turbine speed, which in turn regulates the rotating speed of the compressor. The auto repair labor rates vary by location, your vehicle's make and model, and even. 7P - Touareg 2010 2017, CGRA 3. The exhaust pressure control valve is part of a vehicle's EGR system, The EGR or exhaust gas recirculation system is part of the emission control system which is designed to recirculate the exhaust gases back into the engine when the correct conditions are met, this reduces cylinder temperatures and in turn improves emissions. Moreover, the exhaust valves would also open and close at the wrong time, which in turn would lead to more expenditure on gas. ergoline hybrid light technology dallas body rubs craigslist nv heattrak heated snow melting mats pornstar sex pictures brenda song topless disney plates neha patel akshar patel bike. A stored code P047F means that the powertrain control module (PCM) has detected a malfunction in one of the exhaust pressure control (regulator) valves. Another symptom of a potential issue with the idle control valve is an illuminated Check Engine Light. The exhaust back pressure control valve is designed to park in the fully open position after it has been deactivated by the PCM. Its valves can get stuck due to some factors. (The evap. (Do not start the car. P2440 is a diagnostic trouble code (DTC) for "Secondary Air Injection System Switching Valve Stuck Open Bank 1". P0746 Honda Clutch Pressure Control Solenoid Valve &39;A&39; Stuck Off. P047F Exhaust Pressure Control Valve Stuck Open<br > P048A Exhaust Pressure Control Valve Stuck Closed<br > P0491 Secondary Air Injection System (Bank 1)<br > P0492 Secondary Air Injection System (Bank 2)<br > P0506 Idle Control System RPM Lower Than Expected<br > P0507 Idle Control System RPM Higher Than Expected<br >. Technical Service Bulletin. Common (EGR) Problems spark knock or detonation), because the (EGR) system is not working. The secondary air is supplied by the air pump and it is pumped to the exhaust manifold through the air switching valve. P0401 on Some Ford Vehicles. Here are the most common. The easiest way to get your exhaust pressure control valve replaced is to book it in with a quality mechanic on AutoGuru, we take all the hard work out of it and make the whole process as easy as possible. This extended warranty code is for " Certain 2009-2012 VW TDI vehicles engine codes CBEA, CJAA, and CKRA. 5923 - Exhaust Pressure Control Valve P047F 00 096 - Stuck Open Intermittent - Not Confirmed - Tested Since Memory Clear Freeze Frame Fault Status 00000001 Fault Priority 2 Fault Frequency 1 Mileage 136167 km Date 2018. ), the first letter P designates they are powertrain related codes, the next digits 04 indicates they are auxiliary emissions related codes. It takes a special tool to remove them and it. Use the stethoscope to listen. Technical Service Bulletin. On a 1999 Ford F-150 5. If the exhaust pressure control valve and circuits are still functioning well, then proceed on testing the exhaust pressure control valve position sensor, or exhaust pressure sensor (if applicable) according to the specifications set by the manufacturer. What Does the P047F Code Mean Exhaust Back Pressure Regulator - Is a variable position valve that controls exhaust back pressure during cold ambient temperatures to increase cab heat and decrease the amount of time needed to defrost the windshield. Common causes for the P2006 code include an intake manifold runner control actuator failure, an open or shortened wiring in the IMRC actuator solenoid control circuit, and carbon buildup. This vehicle has had a new left. P0491 Secondary Air Injection System (Bank 1) P0492 Secondary Air Injection System (Bank 2) P0506 Idle Control System RPM Lower Than Expected. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. What Does the P2005 Code Mean Diagnostic trouble code P2005 stands for Manifold Runner Control Stuck Open Bank 2. Instead, theyll run straight out of the exhaust, which will cause much higher emission levels. Title Nissan Sentra Evap Control Valve Location Author OpenSource Subject Nissan Sentra Evap Control Valve Location Keywords nissan sentra evap control valve location, where are the evap pressure sensor and canister vent, where is the evaporative emission control system located, p0447 nissan evap system vent control circuit open, where is. The first sign of trouble for your canister purge valve is the check engine light. P047F001151 - Exhaust Pressure Control Valve Stuck Open Possible Symptoms. If the exhaust flapper DTCs returnd after it was cleanedlubricated and Basic Settings 119 (Labeled Exhaust Pressure Control Motor (J883) Adaptation from the drop-down menu) was performed at idle I would consider replacing it. This function allows you to change and control the opening and closing of the exhaust valves. Engine Knock. September 8th, 2016 - P006A OBD II Trouble Code Manifold Absolute Pressure MAP Mass or Volume Air Flow Correlation How do you clear a service engine soon light in a git. Decrease in power,. - checked and found exhaust flap seized. In this case, the valve appears to be stuck open. Poor Fuel Economy. This can also cause clogging in the variable valve timing solenoid system, thus also clogging the chain and the gear. A very low oil level will cause all of the lifters to click, causing a machine-gun like clicking that comes from both the front and rear of the engine. Engine Knock. Labor 1. Exhaust stroke The last stroke it the exhaust. 0 hour of labor. Technical Service Bulletin. The total cost can run between 110 and 170. Due to high call volume, call agents cannot check the status of your application. The most common symptom of a bad VVT solenoid or oil control valve is a check engine light on your dashboard. The solenoid valve is an electromechanically operated valve. This difficulty in working of the equipment grounds Nissan vent control valve recall dilemma and cause leakage. Due to high call volume, call agents cannot check the status of your application. Removed, cleaned, lubed (hi temp lube) re-installed the valve on 2 cars in less that an hour. 0 hour of labor. Gases always travel from areas of high pressure to low pressure. Eithersituation is quite serious. P0479 Exhaust Pressure Control Valve Intermittent; P0480 Cooling Fan 1 Control Circuit Malfunction. Shop OEM Bmw Part 13627804742 (13-62. 4) Poor Engine Performance. However, on some Hyundai (mostly Elantra, Santa Fe, Tucson, and Tiburon models) and some VAG models from the early 2000s, a stuck open purge valve will. Technical Service Bulletin. It is common for most auto repair shops to charge between 75 and 150 per hour. Loud Irritating Noise. Symptoms of an EGR valve that is stuck open include rough unstable idle and stalling. The valve is located in the engine bay, and is connected to the vents by a series of hoses. Each cylinder of your piston aircraft enginehas two valvesintake and exhaustthat open and close by slidingin and out through a close-tolerance valve guide. 4L V8, for example, this DTC can be triggered by the following issues Vacuum supply; EGR valve stuck closed; EGR valve. Its valves can get stuck due to some factors. The Engine Control Module. Set the vehicle in park and engage the emergency brake. What's new. New posts New media New media comments New resources New profile posts Latest activity. Ed Snow Discussion starter. Causes for this P04A4 code may include Defective exhaust back pressure control valve position sensor Bad exhaust pressure sensor Faulty exhaust pressure control valve Open or shorted wiring in one of the exhaust pressure control valve circuits. depending on whether the device is stuck open or stuck closed. New posts New media New media comments New resources New profile posts Latest activity. Incorrectly installed oil pick-up tube during. If the engine doesn&x27;t have enough air, the air-to-fuel mixture ratio is off, and some fuel might be left after the spark. mod creator for minecraft download. A wet dosing valve tip is normal and does not indicate a leak. Group 25. In some cases it is. 0 kmh Load 25. P0004 DTC Fuel Volume Regulator Control Circuit. However, a diagnostic computer, may point to a Mass Air Flow or Oxygen Sensor failure instead; making it harder for you to detect, the. Poor performance can be caused when the valve is open or closed. RELATED 6 Symptoms of a Bad EGR Valve (& Replacement Cost). Diversion of exhaust gases regulates the turbine speed, which in turn regulates the rotating speed of the compressor. P0746 Honda Clutch Pressure Control Solenoid Valve &39;A&39; Stuck Off. ), the first letter P designates they are powertrain related codes, the next digits 04 indicates they are auxiliary emissions related codes. Technical Service Bulletin. If the vapor canister purge valve is stuck closed instead of open, the valve wont push any fuel vapors back into the engine. The valves tend to fail more in areas that use winter road salt. Removed, cleaned, lubed (hi temp lube) re-installed the valve on 2 cars in less that an hour. 2 Fuel and air metering (injector circuit) 3 Ignition systems or misfires. Often a car stalls when stopping after exiting the highway. In car ECM DiagnosticsECM Reset procedure 1) Sit in the driver's seat. The Engine Control Module. Exhaust stroke The last stroke it the exhaust. This extended warranty code is for " Certain 2009-2012 VW TDI vehicles engine codes CBEA, CJAA, and CKRA. P0004 DTC Fuel Volume Regulator Control Circuit. Exhaust Valves. Exhaust pressure Control Valve 2013 CJAA JSW-Thread starter. turbobrick240 said A failed exhaust flap valve throws the CEL and a P047f or P048a code. This generic powertrainengine diagnostic trouble code typically applies to diesel engines, including but not limited to certain Ford, Dodge, Mercedes, Nissan, . This often. This difficulty in working of the equipment grounds Nissan vent control valve recall dilemma and cause leakage. The system contains the following components Check Valve (53) - Pressurized engine oil flows to a rail inside the valve cover base. Now it is having a problem with the gears. There are eight systems in total 0 Fuel and air metering and auxiliary emission controls. Excessive carbon in the engine. mod creator for minecraft download. 001151 - Exhaust Pressure Control Valve P047F - 000 - Stuck Open - MIL ON Freeze Frame Fault Status 11100000 Fault Priority 2 Fault Frequency 5 Reset counter 255 Mileage 92708 km Time Indication 0 Date 2010. What's new. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Similarly in the 90&39;s Chevrolet Tracker or its twin Suzuki SidekickVitara, the clogged EGR passages in the intake plenum and the back side of the throttle. Question My 2010 Vauxhall Zafira was diagnosed with an EGR valve stuck on the P0400 code. rhode island nude teen pics. Also, most of the time it does not need to be replaced. OBD2 Codes 101; P0420 Code; P0430 Code; P0300 Code;. The P0028 code sets when the vehicles main computer (powertrain control module or PCM) detects problems with these systems or any of their related components. Well first thing I thought was the shutoff valve was bad. In car ECM DiagnosticsECM Reset procedure 1) Sit in the driver&39;s seat. How to Fix. When the Exhaust Pressure Flap Control Module (J883) is faulty, the engine controller may have any of the following DTCs P047F001151 - Exhaust Pressure. Ed Snow Discussion starter. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. If the valve is stuck in the open position, oil can leak out of the engine, causing the oil level to drop and increasing the risk of engine damage. OBD Code P047F - Exhaust Pressure Control Valve "A" Stuck Open. P047F Exhaust Pressure Control Valve &x27;A&x27; Stuck Open. Valve "B" typically indicates the problem has occurred in the bank of the engine. Error Code P0471 takes place when the PCM (powertrain control module, also known as ECM or engine control module in other 2015 Nissan NV200 makes) has detected . If the vapor canister purge valve is stuck closed instead of open, the valve wont push any fuel vapors back into the engine. The secondary air is supplied by the air pump and it is pumped to the exhaust manifold through the air switching valve. The system contains the following components Check Valve (53) - Pressurized engine oil flows to a rail inside the valve cover base. Error Code P047F is defined as Exhaust Pressure Control Valve A Stuck Open. P1538 Intake manifold runner control bank 2 stuck open Find many great new & used options and get the best deals for Intake Manifold Runner Control Valve Dorman fits 99-04 Ford F-150 4 Your engine has one of those. This code indicates the secondary air injection pump may not be working correctly. PART 1 - Video series on diagnosing and repairing a P0746 pressure control valve solenoid A stuck off on a 2013-2021 Nissan Sentra. In some cars, a stuck-open purge valve can cause difficulty starting right after refueling at a gas station for the first few seconds the engine may run rough and stumble. 001151 Exhaust Pressure Control Valve P047F-000 Stuck Open Car has Stevenson ECO tune-Runs Fine What does this mean Menu. Decrease in power, acceleration, and fuel efficiency. The P2450 code is caused by a faulty blocking or switching valve, wiring issues, or a PCM failure. 1 Dec 5, 2006. P0746 GMC Transmission Control Solenoid Valve 1 Stuck Off . Also, make sure that your vehicles PCM and all exhaust parts are in good working condition to ensure the disappearance of this fault code P048A. Well first thing I thought was the shutoff valve was bad. This fault code would start appearing when the incoming signal from the exhaust pressure sensor . The EGR system flow is excessive. In November I had the SES light come on and took the car to my local dealer who reset the code and I paid for the service as the car is now off warranty. (ECM), in addition to controlling fuel injection, monitors fuel pressure in the system, which it uses to fine. If your VVT solenoid is. PART 1 - Video series on diagnosing and repairing a P0746 pressure control valve solenoid A stuck off on a 2013-2021 Nissan Sentra. examples of structure and function in the human body. repo portable buildings near birmingham, bareback escorts
EGR valve stuck closed An EGR valve that is stuck closed prevents exhaust gases from entering the engine. . Exhaust pressure control valve a stuck open nissan
001151 - Exhaust Pressure Control Valve P047F - 000 - Stuck Open - Intermittent Freeze Frame Fault Status 00100000 Fault Priority 2 Fault Frequency 21 Reset counter 255 Mileage 138713 km Time Indication 0 Date 2000. Crankcase ventilation. Another symptom of a potential issue with the idle control valve is an illuminated Check Engine Light. A stored code P047F means the powertrain control module (PCM) has detected a malfunction in one of the exhaust pressure control (regulator) valves. This means the oil control valves are unable to regulate the oil flow in the system. Here, a small flapper valve located inside the turbine housing opens and closes. Here, a small flapper valve located inside the turbine housing opens and closes. Idle Speed Control Valve Failure or Damaged Power Stage. Instead, theyll run straight out of the. A stored code P047F means that the powertrain control module (PCM) has detected a malfunction in one of the exhaust pressure control (regulator) valves. Nov 29, 2009 &183; Jan 30, 2010. You can see the valve under the car below the passenger front seat. The P0090 code has several related codes, such as the P0089 (Fuel Pressure Regulator 1 Performance), P0091 (Fuel Pressure Regulator 1 Control Circuit Low), and P0092 (Fuel Pressure Regulator 1 Control Circuit High). Causes for this P04A4 code may include Defective exhaust back pressure control valve position sensor Bad exhaust pressure sensor Faulty exhaust pressure control valve Open or shorted wiring in one of the exhaust pressure control valve circuits. The repair is to replace the EGR valve. Typically, the EGR valves location is on the engines intake manifold. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Water in the exhaust system causes the flap motor to rust at the pivot points and these. 0 kmh Load 25. 2009 jetta tdi just produced code P047F - Exhaust pressure valve A stuck open. The solenoid valve is an electromechanically operated valve. Upon each initial engine start-up, the ECM exercises the exhaust back pressure valve by commanding it to cycle on and off once. OBD II code P0401 Exhaust EGR Flow Insufficient. Whenever the EGR valve is removed, the EGR passages need to be checked for carbon buildup. Exhaust Valves. Note however that this is rare event, and the fault must be sought elsewhere before any controller is replaced. Fault symptom 1. My 2011 Golf TDI has been throwing the OBD code P047F -- "Exhaust Pressure Control Valve Stuck Open" for some time now. Another symptom of a potential issue with the idle control valve is an illuminated Check Engine Light. In 2006, the Nissan Frontiers vent control valve is located on the left side of the vehicle, near the front fender. Once the turbos exhaust intake is not regulated, it would overwalk itself, and in a short while, the system would fail. How to be saved Born Again -. P047F Exhaust Pressure Control Valve Stuck Open P1317 Bank 1 Exhaust Pressure Control Valve Malfunction P1318 Bank 2 Exhaust Pressure Control Valve Malfunction. Invalid Data Received From Restraints Control Module Intermittent P047F00 - Exhaust Pressure Control Valve "A" Stuck Open Intermittent. Apply vacuum directly to the EGR valve using either a hand vacuum pump or scan tool depending on the type of EGR valve. The valve is located in the engine bay, and is connected to the vents by a series of hoses. The easiest way to get your exhaust pressure control valve replaced is to book it in with a quality mechanic on AutoGuru, we take all the hard work out of it and make the whole process as easy as possible. " C. I got it repaired from the dealer. Removed, cleaned, lubed (hi temp lube) re-installed the valve on 2 cars in less that an hour. Several other factors can trigger the warning light. If your VVT solenoid is. 0 hour of labor. To diagnose the P047F Volkswagen code, it typically requires 1. Hi All. This defect can also cause the system to suck in more air. 2. Group 25. Labor 1. That means that air can flow into the combustion chamber at unexpected levels, which will. assimilation phonological process. Loss of compression. A tube connects the valve to the exhaust manifold. Rough idle. 2. If your VVT solenoid is experiencing issue due to a faulty oil control valve, you may notice a reduction in engine performance, as the VVT system may not be able to optimize the engine for peak power generation. Shop 2020 Nissan NV3500 Pcv Valve. If the exhaust flapper DTCs returnd after it was cleanedlubricated and Basic Settings 119 (Labeled Exhaust Pressure Control Motor (J883) Adaptation from the drop-down menu) was performed at idle I would consider replacing it. Engine oil leaks. The 5 symptoms of a bad purge valve are the engine becomes difficult to start or wont start at all, the engine runs rough or stalls out, the car doesnt accelerate smoothly, there is a loss of power, and the Check Engine light comes on. Rough idle or misfiring, because, the valve is not closing and is leaking exhaust into the intake manifold. Exhaust pressure Control Valve 2013 CJAA JSW-Thread starter. Labor 1. The cost to diagnose the P047F code is 1. 0 hour of labor. P1518 Intake Manifold Runner Control (Stuck Open) P1519 Intake Manifold Runner Control (Stuck Closed) P1520 Intake Manifold Runner Control Circuit Malfunction. The P2450 code is caused by a faulty blocking or switching valve, wiring issues, or a PCM failure. hmmm, neither of those codes show up in the references I can find of Gallardo specific codes, but P140x seem to be all exhaustcatalyst related. 5L - Bad Runner Control ValveCodesP1800 - VIAS control solenoid valve circuit openP1148 - closed loop control function faultRunner contr. The paper work reported a fault code PO48A00 - Exhaust Pressure Control Valve Stuck. Thats because the EGR valve is typically open then as it recirculates exhaust to lower the overall temperature of the combustion chamber. Cylinder head and rocker cover. The auto repair labor rates vary by location, your vehicle's make and model, and even. The valve is located in the engine bay, and is connected to the vents by a series of hoses. For example, if the valve clogs, or gets stuck in the closed position, you&39;ll notice one of these symptoms. However, a diagnostic computer, may point to a Mass Air Flow or Oxygen Sensor failure instead; making it harder for you to detect, the. The EGR valve is fairly simple when it is open exhaust gases are allowed through the EGR system to help control vehicle emissions, whereas when the valve is closed exhaust gases cant pass through the EGR system. If the valve becomes stuck or blocked it can affect. P0401 on Some Ford Vehicles. Group 25. If the engine is fed exhaust fumes continuously, this can overheat the valve, cause poor acceleration. by Dominic Jan 6, 2023 Parts 0 comments. Diesel high pressure EGR valves divert the high-flow, high-soot exhaust gas before. That may include but is not limited to vehicles from Dodge, Honda, Chevy, Ford, VW, etc. Now the SES light came on again. DTC P047F00 Exhaust Pressure Control Valve "A" Stuck Open and P048A00 Exhaust Pressure Control Valve "A" Stuck Closed test plan J883X1021211TDI01XAbgasklappe00011 should first check if the exhaust flap is mechanically seized before checking wiring. There are many different EGR system designs in use today. How long can you drive with a P047F code "exhaust pressure control valve Stuck Open" until you get a part My VW dealer has to order one in. Gases, Harmful, Stuck - OEM Nissan Part 11810-E3001 (11810-E3000, 11810-E3000MP, 11810-E3001MP, 11810-Y4460, 11810E3001). Crankcase ventilation. However, on some Hyundai (mostly Elantra, Santa Fe, Tucson, and Tiburon models) and some VAG models from the early 2000s, a stuck open purge valve will. Open the crankcase to check the engine oil level. OBD II code P0401 Exhaust EGR Flow Insufficient. The fault code p048a can be caused by a faulty exhaust back pressure valve, an open or shorted harness for the exhaust back pressure valve, and a poor electrical connection in the exhaust back pressure valve circuit. Decrease in power, acceleration, and fuel efficiency. In order to fix an open EGR valve, youll need a few tools. At about 50,000 miles, the exhaust valve may develop problems with sticking closed. Thus, causing the engine to over-perform and use more oil. Most auto repair shops charge between 75 and 150 per hour. What's new. The exhaust back pressure control valve is designed to park in the wide open position once it is deactivated by the PCM. Valve "A" typically indicates the problem has occurred in the bank of the engine which contains the 1 cylinder but designs vary between manufacturers. A faulty exhaust pressure valve may cause the vehicle to experience . - replaced exhaust flap, cleared fault and all ok. . sjylar snow