Code p0406 - P0406 CODE: Exhaust Gas Recirculation (EGR) Sensor A Circuit High Input. In layman's terms, an engine code P0406 is a sign that your car's engine needs to be checked right away. This code is short for Exhaust Gas Recirculation Sensor A Circuit High. If you ignore this EGR code, then there is a huge certainty that your car's engine will act up soon.

 
A P0406 trouble code means that there is something wrong with the exhaust gas recirculation system (also known as ‘EGR’). This particular system is designed to lower combustion temperatures under certain conditions, thereby reducing NOx emissions.. Costco kennesaw

May 8, 2019 · P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Chrysler Sebring as it would any other vehicle. The EGR system allows a certain amount of ... code P0406. my 2002 ford f150 (4.6L) check engine light went on and a friend of mine checked it with his OBDII, code P0406 (exhaust gas recirculation sensor A circuit high) went to ford dealer and was told two different problems: first guy said it's my DPFE sensor and the other guy said it's the EGR valve now i'm very confused don't know were ...P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Dodge Durango as it would any other vehicle. The EGR system allows a certain amount …See the full video here: https://youfixnsave.com/product/error-code-p0406-fixed-egr-valve-replacement-2005-2010-jeep-grand-cherokee-4-7/Description: Step by ...P0406 Code: Meaning, Causes, and Symptoms | OBD2 Codes. P0406 – Exhaust Gas Recirculation Sensor ‘A’ Circuit High . P0406: DIY Repairing Video TutorialMay 4, 2019 · P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Jeep Wrangler as it would any other vehicle. The EGR system allows a certain amount of the ... May 4, 2019 by Jason. P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Jeep Commander as it would any other vehicle.The potential causes of a P0406 code are: Short circuit between the EGR sensor signal circuit and B+ (battery voltage) Short circuit between the EGR sensor signal circuit and the 5 volt reference circuit to EGR. Open circuit in the EGR sensor ground circuit. Open circuit in the EGR sensor signal circuit.EGR code # P0406 HELP. Jump to Latest Follow 12K views 7 replies 3 participants last post by SRTDZGN Feb 9, 2011. SRTDZGN Discussion starter 223 posts · Joined 2009 Add to quote; Only show this user #1 · Feb 9, 2011. Went to Autozone to have check engine light checked and came back with code # p0406 which is the EGR system …6,826 Answers. P0406 Exhaust Gas Recirculation Sensor A Circuit High. Posted on Oct 08, 2010. Anonymous. 1102 Answers. SOURCE: I have a 2006 chrysler. P0406 is EGR position sensor circuit high input. You need to replace the EGR sensor, but it's part of the EGR valve assembly. About $80.00 for the part.To diagnose the P0406 Dodge code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and $150 per hour.Mar 7, 2021 · Remove and replace EGR valve. Code 406 EGR code for 420 efficiency bank one sensor one. P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Toyota Hilux as it would any other vehicle. The EGR system allows a certain amount of …When it comes to coding platforms, LeetCode is often mentioned as one of the top choices for programmers and coding enthusiasts. However, there are also other coding platforms avai...OBD-II Code P0406 means that the Exhaust Gas Recirculation (EGR) Valve Position Sensor is giving voltage readings that are too high, which can lead to the …MEMBER. 2005 CHRYSLER 300. 6 CYL. 2WD. AUTOMATIC. 71,000 MILES. I have a Chrysler 300 Touring and my engine light is staying on with the code p0406 EGR Position Sensor Circuit High. I have had a recent tune up with the plugs and coils being replaced but it has not helped. I would like to know how much it would cost if a dealrer fixes this issue ...P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Ford Taurus as it would any other vehicle.P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Dodge Caravan as it would any other vehicle.2.7L EGR is located at the rear of the right cylinder head. EGR system components and location. Upper tube (2), EGR valve (1), and Lower tube (3). here is the complete diagnostic procedure: P0406-EGR POSITION SENSOR CIRCUIT HIGH. For a complete wiring diagram Refer to Section 8W [/B].2.7L EGR is located at the rear of the right cylinder head. EGR system components and location. Upper tube (2), EGR valve (1), and Lower tube (3). here is the complete diagnostic procedure: P0406-EGR POSITION SENSOR CIRCUIT HIGH. For a complete wiring diagram Refer to Section 8W [/B].The potential causes of a P0406 code are: Short circuit between the EGR sensor signal circuit and B+ (battery voltage) Short circuit between the EGR sensor signal circuit and the 5 volt reference circuit to EGR. Open circuit in the EGR sensor ground circuit. Open circuit in the EGR sensor signal circuit.A redemption code is a special code found on a product that gives the buyer certain access to the product, such as when purchasing software or online academic products. A redemptio...See the full video here: https://youfixnsave.com/product/error-code-p0406-fixed-egr-valve-replacement-2005-2010-jeep-grand-cherokee-4-7/Description: Step by ...P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Lincoln MKC as it would any other vehicle.Come along with Eric O. at SMA as he makes a video to show the procedure he uses to chase down the infamous P0406 that haunts many Chrysler products.Check ou...P0406 Code: Exhaust Gas Recirculation Sensor A Circuit High P0023 Code: Exhaust “B” Camshaft Position Actuator Circuit (Bank 2) File Under : OBD-II Trouble Codes Tagged With : egr-valve , Engine Control ModuleJan 13, 2024 · Diagnosing the cause of the P0406 code on your Ford car can be done using a few methods. First, check for any visible damage or loose connections in the EGR valve and its related components. Next, use a scan tool to access the vehicle’s onboard diagnostics system and retrieve any specific trouble codes or freeze frame data. Code P0406 Chrysler Description. Early Exhaust Gas Recirculation (EGR) systems component s include and EGR Valve, and Engine Control Μodule (ECΜ) …Aug 26, 2019 ... ... that has been diagnosing a P0406 code..Parts have already been replaced, circuit test good. #P0406 #CheckEngineLight #DodgeDurango.About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features NFL Sunday Ticket Press Copyright ...EGR valve replacement instructions , intake removal, change spark plugs Engine light Code P0406 ... Change spark plugs with the EGR valveEncountered a P0406 code indicating EGR sensor circuit high. Uses a MAP sensor to monitor vacuum to EGR. Observed vacuum at EGR: 7″ at idle, 20″ during light throttle driving, and drops to 0″ when turbo builds boost. Scanner showed desired EGR duty cycle at 80%, but actual was 0%. Computer Codes & Descriptions: P0406 – EGR voltage highEncountered a P0406 code indicating EGR sensor circuit high. Uses a MAP sensor to monitor vacuum to EGR. Observed vacuum at EGR: 7″ at idle, 20″ during light throttle driving, and drops to 0″ when turbo builds boost. Scanner showed desired EGR duty cycle at 80%, but actual was 0%. Computer Codes & Descriptions: P0406 – EGR …🔴 Find out everything about the P0406 fault code In this video, we will explore the description, symptoms, causes, and solutions to resolve this problem. Do...May 8, 2019 · P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Dodge Sprinter as it would any other vehicle. The EGR system allows a certain amount of ... ChryslerP0406 Chrysler DTC P0406 Make: Chrysler Code: P0406 Definition: EGR Position Sensor Circuit High Input Description: Key on or engine running; system voltage over 10.5v.The cost to diagnose the P0406 2003 Ford F150 code is 1.0 hour of labor. 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. Most auto repair shops charge between $75 and $150 per hour.Aug 1, 2014 · Replaced the EGR valve in my 2007 Wrangler after the engine light came on with the code P0406 for the valve, all was good for about 2 weeks and the engine light is on again and this time it is putting code P0403 & P0406. Hey all! I just got an 07 1500 Hemi in great shape with 170K miles on it. The truck drives great, 4x4 engages and works properly. Seemingly no issues at all. BUT occasionally the check engine light will come on. I went to AutoZone when it was lit. When they scanned it, the only code that came up was P0406. I researched some and got a …Diagnosing the cause of the P0406 code on your Ford car can be done using a few methods. First, check for any visible damage or loose connections in the EGR valve and its related components. Next, use a scan tool to access the vehicle’s onboard diagnostics system and retrieve any specific trouble codes or freeze frame data. …Detailed information on troubleshooting and repairing a P0406 DTC code which has to do with the EGR sensor A circuit high. Also includes links to relevant forum topics on the code.P0406 code is shown po406 is egr senor code, this is part of egr, dodge has a lot of problems with this valve, ive replaced about 20 of them on magnums and caravans, to solve this problem, replace the egr valve and reset the codes, the valves not to expensive, its about $60.00, heres a picture of it.hope this helps,Learn how you can improve your code quality in an instant following 3 simple rules that we cal Receive Stories from @gdenn Get free API security automated scan in minutesP0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Dodge Nitro as it would any other vehicle.P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Ford Ranger as it would any other vehicle. The EGR system allows a certain amount of the ...To diagnose the P0406 Mercury code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and $150 per hour.=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code FORD P0406 Saving Repair...Bad EGR valve on my Dodge Ram 1500. Code P0406. Using WD40 and EasyOff oven cleaner.Teespring.com/new-svcruzaIKEA is a popular home decor and furniture retailer that offers affordable and stylish products. If you’re looking to shop at IKEA online, you might be wondering how to get the bes...Causes of the P0406 Code. The P0406 engine code is triggered due to one or more of the following causes: Faulty EGR valve; Excessive carbon buildup in the EGR valve; Carbon buildup in the EGR sensor; Open/short EGR sensor circuit; Poor electrical connections; Damaged or corroded wiring to the EGR valve; EGR valve vacuum line leaks; Clogged EGR ...May 8, 2019 · P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Dodge Sprinter as it would any other vehicle. The EGR system allows a certain amount of ... P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Ford Kuga as it would any other vehicle. The EGR system allows a certain amount of the ...What is the Cost to Diagnose the Code P0406 Mitsubishi? Labor: 1.0. The cost to diagnose the P0406 Mitsubishi code is 1.0 hour of labor. 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. Most auto repair shops charge between $75 and $150 per hour.Feb 2, 2019 ... Bad EGR valve on my Dodge Ram 1500. Code P0406. Using WD40 and EasyOff oven cleaner. Teespring.com/new-svcruza.http://www.wellsve.com/ In this video we demonstrate how to test the EGR valve on Dodge vehicles without the factory scan tool. The vehicle has set a code P...Top 50 OBD2 hibakód. A P0406 hibakód jelentése: Kipufogógáz visszavezetés érzékelő 'A' áramkör magas jelszint. Tudd meg, hogy ez pontosan mit is jelent. Mik a P0406 kód tünetei, okai és mi a hiba kijavításának módja.Please use the following link when ever using Amazon.com. Any purchases you make on Amazon will help support this channel.http://amzn.to/2mALgqSFeel the need...Good luck diagnosing your Expedition ! P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Ford Expedition as it would.Bad EGR sensor, code p0406. Jump to Latest Follow Status Not open for further replies. 21 - 39 of 39 Posts. 1 2. O. orthogod1 · Registered. Joined Aug 20, 2005 · 35 Posts. Discussion starter · #21 · Apr 18, 2006. Only show this user. Picked up a new egr valve today for 42.00. ...Dec 23, 2022 · P0406 code highlights. Level of urgency:Medium; Possible culprits:EGR valve problems; Price for repair:$200 - $800; If neglected:Bad efficiency, harsh work, loss of ... Hey all! I just got an 07 1500 Hemi in great shape with 170K miles on it. The truck drives great, 4x4 engages and works properly. Seemingly no issues at all. BUT occasionally the check engine light will come on. I went to AutoZone when it was lit. When they scanned it, the only code that came up was P0406. I researched some and got a …OBD II fault code P0406 is a generic fault code that is defined by carmaker KIA as P0406 – “Exhaust Gas Recirculation Sensor “A” Circuit High” and is set when the PCM (Powertrain Control Module) detects a defect, failure, or malfunction in the position sensor of the EGR (Exhaust Gas Recirculation) valve. More specifically, code P0406 ...P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Chrysler 300 as it wouldTo diagnose the P0406 Mercedes-Benz code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and $150 per hour.223 posts · Joined 2009. #1 · Feb 8, 2011. Went to Autozone to have check engine light checked and came back with code # p0406 which is the EGR system fault. Does this mean I need a new EGR valve and where do I get one? 05 4.7 Grand Cherokee. Thanks for the help. 2014 GRAND CHEROKEE SRT8.Detailed information on troubleshooting and repairing a P0406 DTC code which has to do with the EGR sensor A circuit high. Also includes links to relevant forum topics on the code.http://www.wellsve.com/ In this video we demonstrate how to test the EGR valve on Dodge vehicles without the factory scan tool. The vehicle has set a code P...May 5, 2019 · P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Ford Taurus as it would any other vehicle. 122 posts · Joined 2008. #1 · May 5, 2010 (Edited) Ok guys. So my truck threw the famous P0406 code which means I need to get the EGR sensor replaced. Here is my concern. DO I or DON'T I have to get the PCM reflashed when I swap the EGR out? :dunno: I have a 2007 - 5.7 Ram w/ 48k miles. (yes, seems a bit early and the darn code will not go away) Code: P0406. Definition: Exhaust Gas Recirculation (EGR) Sensor A Circuit High. Description: This DTC sets when the EGRVP circuit voltage is greater than a calibrated limit for a specified amount of time. When the EGRVP is greater than a calibrated threshold, an increment counter advances for that drive cycle. P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Toyota Hilux as it would any other vehicle. The EGR system allows a certain amount of the ...480 posts · Joined 2006. #3 · Apr 14, 2010. I had the same code p0406, replaced the egr and everything is fine. I got the part real cheap on ebay, had to get the gasket from the dealer. They will give you two gaskets- one that the location is obvious- sits between the egr and the block and another blue circular gasket which goes into the ...Get the most recent info and news about Let's Start Coding on HackerNoon, where 10k+ technologists publish stories for 4M+ monthly readers. Get the most recent info and news about ...Replaced the EGR valve in my 2007 Wrangler after the engine light came on with the code P0406 for the valve, all was good for about 2 weeks and the engine light is on again and this time it is putting code P0403 & P0406.Code P0406 is then written to memory with a high signal level on the EGR “A” sensor. This means that the changes in the electrical circuit are higher than the reference values. The level of these values may vary depending on the make and model of the vehicle.=====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====Engine Code FORD P0406 Saving Repair...En términos simples, un código P0406 es una señal de que el motor de tu coche debe revisarse de inmediato. Este código se define en tu escáner como “ Circuito alto del sensor A de recirculación de gases de escape”. Si ignoras este código del sistema EGR, existe una gran certeza de que el motor de tu automóvil presentará alguna ...6,826 Answers. P0406 Exhaust Gas Recirculation Sensor A Circuit High. Posted on Oct 08, 2010. Anonymous. 1102 Answers. SOURCE: I have a 2006 chrysler. P0406 is EGR position sensor circuit high input. You need to replace the EGR sensor, but it's part of the EGR valve assembly. About $80.00 for the part.Code P0406 Buick Description. The Engine Control Module (ECM) uses the Exhaust Gas Recirculation (EGR) position sensor to determine the position of the EGR valve. The ECM sends a reference voltage through the 5 V reference circuit to the EGR position sensor. The ECM provides a voltage return path for the sensor through the low reference circuit.I replaced the EGR valve 2/27/14. After clearing the code, the engine line remained off. Now, 3 months later, I am getting the P0406 code again. However, when I reset the code this go-around the engine light would stay off for a few days, then re-illuminate. I checked the installation done back in February - all bolts and the electrical ...Code de problèmeLocaliation du défautCaue probable P0406 Capteur de poition de oupape de recirculation de gaz d'échappement (EGR) Une entrée haute Câblage court-circuit ver poitif, capteur de poition de la vanne EGR, ECM Dan le moteur à combution interne, la réaction chimique idéale de la combution et la uivante: oxygène (O2) + carburant (HC) = dioxyde de carbone (CO2) + eau (H2O ...Code P0406 on 05 ram 1500 5.7L. My check engine light came on so i scanned it and it came up with the code P0406 (exhaust gas recirculation sensor a circuit high). Has any body has this code before and will replacing the egr valve fix it. Attached is a diagram of the EGR wiring. If you unplug the connector at the EGR valve and look at the ...ChryslerP0406 Chrysler DTC P0406 Make: Chrysler Code: P0406 Definition: EGR Position Sensor Circuit High Input Description: Key on or engine running; system voltage over 10.5v.122 posts · Joined 2008. #1 · May 5, 2010 (Edited) Ok guys. So my truck threw the famous P0406 code which means I need to get the EGR sensor replaced. Here is my concern. DO I or DON'T I have to get the PCM reflashed when I swap the EGR out? :dunno: I have a 2007 - 5.7 Ram w/ 48k miles. (yes, seems a bit early and the darn code will not go away)P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Ford Mondeo as it would any other vehicle. The EGR system allows a certain amount of …2006 Mondeo MK3 with P0406 EGR fault code. A few basic tests then replacement and retesting.My Amazon shop.... https://www.amazon.co.uk/shop/automotivesoluti...Ford P0406 OBD-II Trouble Code Definition:. P0406 Exhaust Gas Recirculation Temperature Sensor Circuit High Input. P0406 Ford OBD-II Trouble CodeDescription:Mar 25, 2020 ... Код ошибки P0406, диагностика и ремонт автомобиля. 1.6K views · 4 years ago ...more. OBD-2 codes. 41.6K. Subscribe.Fault code P0406 can sometimes be found with other errors. The most common are the following: P0325, P0400, P0401, P0402, P0403, P0404, P0405, P0407, P0408, P0409, P2099. Video. Rate article. Share on Facebook. You may also like. Fault code P0B38 – motor electronics coolant pump “B” control circuit open. 0 42.

P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Ford Taurus as it would any other vehicle.. Human resources administration bronx ny

code p0406

Use a diagnostic scan tool to record any DTC's (Diagnostic Trouble Codes). Disconnect and isolate the negative battery cable. Disconnect electrical connector (1) from EGR solenoid (2). Remove two bolts (3) connecting EGR tube (4) to valve assembly. Remove gasket located between EGR tube flange and EGR valve assembly.P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Dodge Ram as it would any other vehicle.Replaced the EGR valve in my 2007 Wrangler after the engine light came on with the code P0406 for the valve, all was good for about 2 weeks and the engine light is on again and this time it is putting code P0403 & P0406.Algunas causas pueden ser: Fallo en el sensor de la válvula EGR: El código P0406 puede ser causado por un mal funcionamiento del sensor de la válvula EGR, lo que provoca una lectura de señal alta. Obstrucción en la válvula EGR: Si la válvula EGR está obstruida o bloqueada, puede generar una señal alta en el sensor y activar el código ...The P0406 code indicates a high voltage signal from the EGR position sensor to the PCM. Possible causes include a faulty EGR valve position sensor, a bad …http://www.wellsve.com/ In this video we demonstrate how to test the EGR valve on Dodge vehicles without the factory scan tool. The vehicle has set a code P...P0406 is a generic OBDII Diagnostic code. It deals with the signal coming from the EGR system. In this case, it means that the signal coming from the EGR system is higher than the specified range Since it is a generic code, it has the same meaning for the Chrysler Sebring as it would any other vehicle. The EGR system allows a certain amount of ...To diagnose the P0406 Mazda code, it typically requires 1.0 hour of labor. 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. It is common for most auto repair shops to charge between $75 and $150 per hour.This video is about Replacing EGR Valve - EGR CODE P0406 - Repairing a P0406 DTC code, replacing EGR Valve Dodge Magnum, Dodge Charger, Chrysler 300, Dodge, ...Update/Follow-up video: https://www.youtube.com/watch?v=K8iI5faesjcMy main goal is to help give ideas rather than show a fix, as my fix was probably somewhat...Bad EGR valve on my Dodge Ram 1500. Code P0406. Using WD40 and EasyOff oven cleaner.Teespring.com/new-svcruzaShort video showing how to fix the common EGR failure on the 5.7L Hemi pick-ups. This is on a 2008 Dodge Ram 1500 Hemi. I know we skipped a lot of steps in t...OBD2 Code P0406 Land Rover definition: The optical sensor provides a high resolution signal to the Powertrain Control Module (PCM) by counting pulses on the sensor disk located in the injection pump. The high resolution is one of the most important inputs by the PCM for fuel control and timing..

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