2024 P3400 code

There are couple of TSBs on this code. If your oil level is low, I suggest to either add oil or do an oil change. I did recently replaced rear oil pressure switch for the the recurring 3400 on a 2011 Pilot (vcm2 oil burner).. Peacehealth pediatrics riverbend

P0304:00, P3400:00, P349B:00, and/or P3498:00, perform the following. REPAIR PROCEDURE INSPECTION PROCEDURE 1. Remove cylinder head cover and inspect valvetrain area. 2. Inspect for fallen or broken rocker arm, especially in cylinder deactivation area (cylinders 1 and 4). 3. Verify engine oil change records. 4.Code P3400 (VPS) stuck off Bank One can be set by Low oil level and Low engine pressure, a maintained engine lubrication system extends the life of the engin...Jul 26, 2022 · Bad wiring could also cause the P3400 code. Therefore, inspect the wires that connect to the VVT system. Any frayed, broken, or burnt wires should be replaced immediately to clear the code. Other causes include: Faulty mass airflow sensor. Limited oil passage. Faulty throttle position sensors. Bad lifters. Original owner; 2013 Pilot 4WD ~80k miles. Oil is clean & full. The CEL & VTM-4 light randomly came on with code P3400. The car feels low on power and shudders above 55 mph. The ECO light also doesn't turn on anymore. I did a quick search and this seems to be a code for an oil pressure switch on the firewall-side of the engine that …P3400 is a generic OBD2 trouble code. It indicates that your Acura RDX’s cylinder deactivation system has a performance issue. It is a very common code to see in Honda-made cars, vans, and trucks. P3400 by itself is not a breakdown risk. Your RDX’s engine will run just fine on all of its cylinders. The concern with this code is that some of ...Mechanic for Honda: Ron. The problem you are having with the code P3400 setting is a known concern and In most cases, it's due to a failing Rear Rocker Arm Oil Pressure Switch and Honda has released a service bulletin dealing with this that calls for replacing the switch. That being said be sure that you have clean engine oil and a good quality ...1. Use an OBD-II scanner to retrieve the specific diagnostic trouble code (DTC) P3400. 2. The P3400 code indicates a problem with the Cylinder Deactivation System in the engine. 3. Inspect the engine oil level and quality. Low oil level or dirty oil can trigger this code. 4.After having a code reader put on the car in addition to the P0420 code was a P3400 code. After having the car combed over by a shop I trust they advised me to have the "Rocker Arm Oil Pressure Switches on the valve cover" replaced, 2 $30 parts so I was hopeful this would fix the issue and there would be no more problems.The code was P3400. They reset it and both came back on within ... 2014 Honda Pilot EX-L-Maintenance & Repair. Vtm4 light on my honda pilot 1 Answer. My honda pilot 2015 light is on what could be the problem and how much to fix. 2015 Honda Pilot-Maintenance & Repair. 2007 Honda Pilot VSA and engine light 1 Answer.16531 posts · Joined 2004. #2 · Apr 19, 2017. That code can be triggered by many things. You need to work through the list of possible causes a step at a time, starting with low oil level. Defective cylinder deactivation solenoid. An open or short in the cylinder deactivation solenoid harness. A bad electrical connection in the cylinder ...Just like yours, it was still driving fine without any issues. I got back home and found that the code was P3400. I cleared the code, and it did not come back immediately, and it has still remained off over 5 months later. I'm not sure what caused it initially as the oil level and quality were both good, but it's been fine since then.May 2, 2022 · P3400 is a generic OBD2 trouble code. It indicates that your Acura RDX’s cylinder deactivation system has a performance issue. It is a very common code to see in Honda-made cars, vans, and trucks. P3400 by itself is not a breakdown risk. Your RDX’s engine will run just fine on all of its cylinders. Code: P3400 Definition: Cylinder Deactivation System - Bank 1 Description: When all criteria has been met, power is supplied to each MDS Solenoid when the engine is making a transition from 8 cylinder mode to 4 cylinder mode. By actuating the solenoid, oil pressure is raised to the pair of lifters that coincide with each particular solenoid.The P3409 code is Cyl2 Deactivation/Intake Valve Control Circuit/Open. Cyl2 narrows the issue down to engine cylinder number 2. Other codes in the P3400 series may present concurrently with P3409, indicating a problem with …Jan 15, 2019 · Honda service bulletin 13-055 to fix P3400 or P3497. Honda has issued a service bulletin 13-055 to fix P3400 or P3497 and multiple misfire codes P0301 through P0304) on the vehicles listed below. P3400 and P3497 relate to rocker arm oil pressure switches B and C which measures oil pressure entering the variable cylinder management system (VCM). Apr 13, 2024 · To address a P3400 code affecting cylinder deactivation in Bank 1: first, check oil level and pressure. Use diagnostic tools and review service bulletins for guidance.. Follow flowcharts to isolate issues with valve timing control solenoids and communication faults. Honda setting code #P3400 and #P3497 valve pause System stuck off both Banks. If these codes set in your Honda and you have a check engine light on before sp...Mazda DTC P3400 Related Service Bulletins. Home Diagnostic Trouble Code P3400 Mazda. 🔍. The following TSBs of Mazda are related to DTC P3400. 2016 Mazda CX-3 Engine and Engine Cooling TSB Details …. 2017 Mazda CX-3 Engine and Engine Cooling TSB Details …. 2018 Mazda CX-3 Engine and Engine Cooling TSB Details ….Kode P3400 terkait dengan sistem Variable Valve Timing (VVT) yang bertugas mengatur timing katup mesin untuk performa dan efisiensi optimal. Kode ini biasanya menunjukkan masalah pada sistem VVT, seperti katup kontrol oli yang rusak, tekanan oli rendah, atau sensor posisi poros bubungan yang tidak berfungsi.A stored code P3497 means that the powertrain control module (PCM) has detected an abnormality in the cylinder deactivation system for engine bank 2. Bank two denotes the bank of the engine which doesn't contain the #1 cylinder. The location of the number one cylinder varies by make and model. Consult your service manual (or alternate source of ...P3400 is a generic OBD2 trouble code. It indicates that your vehicle's cylinder deactivation system has a performance issue. It is a very common code to see …6 posts · Joined 2024. #1 · Jan 8, 2024. has anyone encountered a reoccurring p0106 and p03400. The truck is a 2011 5.3 flex fuel. So far I have changed plugs, valve cover gaskets, maf sensor, map sensor, intake manifold gasket, and cleaned throttle body to know avail. I have checked all lines and can't see leaks and am getting proper signal ...What the P3400 code means. When starting or idling, and when the vehicle is operating under heavy loads, the engine will operate in V8 mode, using 8 cylinders. However, when driving conditions are light the engine will deactivate 4 of the 8 cylinders to change from V8 mode to V4 mode. The powertrain control module (PCM) will determine …Mazda DTC P3400 Related Service Bulletins. Home Diagnostic Trouble Code P3400 Mazda. 🔍. The following TSBs of Mazda are related to DTC P3400. 2016 Mazda CX-3 Engine and Engine Cooling TSB Details …. 2017 Mazda CX-3 Engine and Engine Cooling TSB Details …. 2018 Mazda CX-3 Engine and Engine Cooling TSB Details ….What the P3400 code means. When starting or idling, and when the vehicle is operating under heavy loads, the engine will operate in V8 mode, using 8 cylinders. However, when driving conditions are light the engine will deactivate 4 of the 8 cylinders to change from V8 mode to V4 mode. The powertrain control module (PCM) will determine …Dec 13, 2020 ... The video focuses on the basic GMC specific diagnostic error code. Contents: 0:21 Basic DTC analysis according to OBD2 protocol standard.Oil Pressure sensor - https://amzn.to/3MWyMILit should work on the honda odyssey around the same model years with the v6 engine.As an Amazon Associate I ear...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 ...# Honda V6 VCM Oil Pressure Switch Replacement (Code P3400)Honda V6 Engine J35A7, with VCM (Variable Cylinder Management)shown in the 2010 Odyssey Ex-L## Rea...Fixing a P3400 trouble code is usually easy enough and falls in the DIY category. Of course, if in doubt call a professional certified mechanic. The P3400 code will be given by an OBDII scanner tool after the Honda check engine light comes on. Other OBDII trouble codes may also be given and also need to be looked up for the cause.May 2, 2022 by Jason. P3400 is a generic OBD2 trouble code. It indicates that your Honda Pilot’s cylinder deactivation system has a performance issue. It is a very common code …The revolution we've all been waiting for hasn't yet arrived. Despite the good intentions behind the movement to get people to code, both the basic premise and approach are flawed....1,266 Posts. #28 · Jan 28, 2010. Your motor is SUPPOSED to have 5-20. 5-30 may be too heavy (if that's what went in) at lower temps causing the low oil pressure to the MDS solenoid. If you were to pour the two side by side at the same temperature, you would actually be able to see the difference in viscosity.P3400, P3497 Honda trouble codes Diagnose and fix P3400, P3497 Honda codes. Honda has issued a service bulletin #11-033 to address excessive oil consumption and P3400, P3497 Honda trouble codes on the vehicles listed below.If you’re ready to try your hand at coding, you’re in luck, because there is no shortage of online classes and resources available. Read on to discover some of the easiest ways to ...According to the owner's manual, a flashing VTM-4 warning light on a Honda Pilot means that you should immediately pull over, slot the transmission into Park, and let the engine idle until the VTM ...• P3400 – Replace the Bank 1 rear rocker arm oil pressure switch. • P3497 – Replace the Bank 2 front rocker arm oil pressure switch. ... A code P0299 for lower- than-normal boost can be one of the most challenging DTCs to resolve. You might think it is a code for a leak, but it could be more than a leak. The criteria for setting the ...Oil Pressure sensor - https://amzn.to/3MWyMILit should work on the honda odyssey around the same model years with the v6 engine.As an Amazon Associate I ear...May 2, 2022 · P3400 is a generic OBD2 trouble code. It indicates that your Acura RDX’s cylinder deactivation system has a performance issue. It is a very common code to see in Honda-made cars, vans, and trucks. P3400 by itself is not a breakdown risk. Your RDX’s engine will run just fine on all of its cylinders. To address a P3400 code affecting cylinder deactivation in Bank 1: first, check oil level and pressure. Use diagnostic tools and review service bulletins for guidance.. Follow flowcharts to isolate issues with valve timing control solenoids and communication faults.Test each solenoid individually to pinpoint problems accurately. Professional …May 4, 2022 by Jason. P3497 is a generic OBD2 trouble code. It indicates that your Honda Pilot’s cylinder deactivation system has a performance issue on the bank 2 side (we cover what a bank is below if you don’t know). It is a very common code to see in Honda-made cars, vans, and trucks. P3497 by itself is not a breakdown risk.It is also very likely that other cylinder deactivation codes will be logged because P3400 is a broad code. Be sure to look out for codes ranging from P3401 to P3429. These can also help pinpoint the cause of this code. What Could Be The Problem? Because the cylinder deactivation is a relatively closed system, most possible causes will be found ...Honda Odyssey is a popular choice among many minivan buyers but has technical errors! What Causes Errors on the Honda Odyssey? A weak battery. If your Honda Odyssey won’t start or cranks slower than usual, the problem is a weak or dead battery.OBD II fault code P3400 is a generic trouble code that is defined as “Cylinder deactivation system – Bank 1”, and is set when the PCM (Powertrain Control Module) detects a fault, failure, or malfunction in any part or component in the cylinder deactivation system that prevents the system from functioning, and/or functioning correctly.Operate the vehicle within the Conditions for Running the DTC to verify the DTC does not reset. You may also operate the vehicle within the conditions that you observed from the Freeze Frame/Failure Records data. Verify DTC P3400 does not set. If DTC sets, refer to Circuit/System Testing. If DTC does not set.It usually is the one causing P3400 code. BTW, the P3400 code will usually trigger the VSA to come on and puts your van in limp mode. Hence, you cant go over certain RPM or speed. Fix the P3400 and your VSA code will go away. the spool valve is on the driver side, in the rear of the Engine across from the firewall.There are many situations where you can find yourself needing to look up a ZIP code. Maybe you’re trying to mail a letter but only have the recipient’s street address. Perhaps you’...Dec 30, 2022 · A P3400 code occurs during a performance issue with your vehicle's cylinder deactivation system, which is used to change between V8 and V4 modes. When the code is displayed, your vehicle will only operate in V8 mode—forcing your car to consume additional fuel and thus increasing engine emissions. Modern vehicles rely on diagnostic trouble ... Apr 23, 2016 · P3400, P3497 Honda trouble codes Diagnose and fix P3400, P3497 Honda codes. Honda has issued a service bulletin #11-033 to address excessive oil consumption and P3400, P3497 Honda trouble codes on the vehicles listed below. The P3400 code in a 2016 Honda Odyssey refers to a specific fault that has been detected in the vehicle’s Variable Cylinder Management (VCM) system. The VCM system is responsible for controlling the operation of the engine cylinders, allowing it to switch between three- and six-cylinder modes to optimize fuel efficiency. =====Claim your FREE engine code eraser 👉 https://free.nonda.co 👈=====nonda Auto DIY Center is the biggest ... You might think that postal codes are primarily for sending letters and packages, and that’s certainly one important application. However, even if you aren’t mailing anything, you ...Quick overview of cause and fix for a P3400 error code in a Honda. Link to article: https://www.backyardmechanic.org/how-to-fix-honda-engine-error-code-p3400/P3400 code may require you to replace the vtec assembly. The filter screen may be clogged. Amazon.com: Dorman 918-056 Engine Variable Valve Timing (VVT) Solenoid for Select Acura / Honda Models: Automotive Buy Dorman 918-056 Engine Variable Valve Timing (VVT) Solenoid for Select Acura / Honda Models: Throttle …The P3400 code is new and of concern. Oil level looks fine. We've replaced oil sensor switch Bank 1 with OEM part last week. It seemed to help at first, ran better, started better at first and mileage improved. But, regardless code has remained. Car still takes longer to start. Acceleration is a bit sluggish and mileage lower.Dyson coupons for 2023. This June save 20% off at PCWorld Coupon Codes. PCWorld’s coupon section is created with close supervision and involvement from the PCWorld deals team Popul...p3400 code - 05 magnum r/t. So I just got the car not quite 2 weeks ago, drove fine on the test drive and since. So I took it for a long drive to my parents place about 2 hours away, drove fine on the way up... about half way back I can feel the MDS get a little funky, kicking in and out a bit and all the sudden it throws a code.16531 posts · Joined 2004. #2 · Apr 19, 2017. That code can be triggered by many things. You need to work through the list of possible causes a step at a time, starting with low oil level. Defective cylinder deactivation solenoid. An open or short in the cylinder deactivation solenoid harness. A bad electrical connection in the cylinder ...Jan 15, 2024 · The Honda Code P3400 indicates a problem with the Variable Cylinder Management (VCM) system in Honda engines. The VCM system is responsible for optimizing fuel efficiency by deactivating cylinders during low engine load conditions. When this code appears, it suggests that there is an issue with the VCM system, potentially affecting the engine ... Mazda DTC P3400 Related Service Bulletins. Home Diagnostic Trouble Code P3400 Mazda. 🔍. The following TSBs of Mazda are related to DTC P3400. 2016 Mazda CX-3 Engine and Engine Cooling TSB Details …. 2017 Mazda CX-3 Engine and Engine Cooling TSB Details …. 2018 Mazda CX-3 Engine and Engine Cooling TSB Details ….P420 & 430 codes have been there a while. We need to get oxygen sensors for both banks, see if it works. The P3400 code is new and of concern. Oil level looks fine. We've replaced oil sensor switch Bank 1 with OEM part last week. It seemed to help at first, ran better, started better at first and mileage improved. But, regardless code has remained.Code: P3400 Definition: Cylinder Deactivation System Performance Description: DTCs P0102, P0103, P0107, P0108, P0112, P0113, P0117, P0119, P0335, and P0336 are not set. The engine speed is between 450-6,400 RPM. The IAT Sensor parameter is between -7 and +125°C (+19 and +257°F). The ECT Sensor parameter is between 70- 125°C (158-257°F).May 2, 2022 by Jason. P3400 is a generic OBD2 trouble code. It indicates that your Honda Odyssey’s cylinder deactivation system has a performance issue. It is a very common code to see in Honda-made cars, vans, and trucks. P3400 by itself is not a breakdown risk. Your Odyssey’s engine will run just fine on all of its cylinders.2D barcodes are being used in some interesting ways. Visit HowStuffWorks to learn everything about 2D barcodes. Advertisement In the summer of 1974 at a grocery store in Troy, Ohio...Jan 8, 2022 ... 3:39 · Go to channel · Honda code p3497 p3400 fixed link below the description part (2-2). THE EASIEST WAY TO FIX•10K views · 7:04 · Go ...Dyson coupons for 2023. This June save 20% off at PCWorld Coupon Codes. PCWorld’s coupon section is created with close supervision and involvement from the PCWorld deals team Popul...Nov 19, 2023 · Regarding the P3400, like I said before, as long as the engine is running fine, don't worry about that yet. It might not even be an actual issue. The code is for the VCM system on the rear bank. For diagnosing that, the first step is to check the oil level and make sure it isn't low. If it is, that can cause issues like this since the system is ... Code: P3400 Definition: Cylinder Deactivation System Performance Description: DTCs P0102, P0103, P0107, P0108, P0112, P0113, P0117, P0119, P0335, and P0336 are not set. The engine speed is between 450-6,400 RPM. The IAT Sensor parameter is between -7 and +125°C (+19 and +257°F). The ECT Sensor parameter is between 70- 125°C (158-257°F).Tech came out and said P3400 code set for rocker arm deactivation stuck off. Said it was a shorted V-tec Oil Pressure Switch part # 37240-R70-A04 and 91319-PAA-A01 O-ring. Said when this switch is changed oil change is recommended. Part was 29.00 with ring 32.00 214.00 labor charge. Truck has 56,668 miles on it.May 4, 2022 · May 4, 2022 by Jason. P3497 is a generic OBD2 trouble code. It indicates that your Honda Pilot’s cylinder deactivation system has a performance issue on the bank 2 side (we cover what a bank is below if you don’t know). It is a very common code to see in Honda-made cars, vans, and trucks. P3497 by itself is not a breakdown risk. Rios09SLE Discussion starter. 1432 posts · Joined 2012. #1 · Nov 6, 2013. Has anyone encountered the p3400 trouble code for cylinder deactivation. My 09 triggered this code on the way to Arizona from Idaho. Its running fine. No problems. Just would like to hear what it could ve. Sent from AutoGuide.com Free App.16531 posts · Joined 2004. #2 · Apr 19, 2017. That code can be triggered by many things. You need to work through the list of possible causes a step at a time, starting with low oil level. Defective cylinder deactivation solenoid. An open or short in the cylinder deactivation solenoid harness. A bad electrical connection in the cylinder ...1. Turn the ignition switch to the ON (II) position. 2. Press the select/reset knob repeatedly until the engine oil life indicator is displayed. 3. Press the select/reset knob for about 10 seconds. The engine oil life and the maintenance item code (s) will blink. 4. Press the select/reset knob for another five seconds.O código P3400 indica que há problema de desempenho no Sistema de Desativação de Cilindro do Banco 1. O desempenho do motor diminui e o consumo de combustível aumenta quando seu carro encontra esse código. Normalmente, o código não causa danos repentinos ao seu carro. No entanto, o mecanismo começará a falhar se você não ...May 2, 2022 by Jason. P3400 is a generic OBD2 trouble code. It indicates that your Honda Accord’s cylinder deactivation system has a performance issue. It is a very common code to see in Honda-made cars, vans, and trucks. P3400 by itself is not a breakdown risk. Your Accord’s engine will run just fine on all of its cylinders.99999 11-Apr-12 61.59 DCEL: no codes detected Come back when it turns back on. 999999 14-Apr-12 0 DCEL: P0303 Replace #3 Spark Plug 999999 18-Sep-13 225.74 DCEL: P3400, Diagnose P03600 Replace 2 rocker arm oil pressure switch and o-ring 999999 23-Jan-14 123.17 DCEL: P3497, P3400 Burning Oil 999999 4-Jun-14 135.6 …IKEA 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...With the test I found that the new one is working fine. And the factory one is also working. This leads me to believe there was something wrong in the system. BTW, I could not erase the code using the OBD scanner. I disconnected the battery to reset the system. When I started the engine again, the check engine light stayed off.With the test I found that the new one is working fine. And the factory one is also working. This leads me to believe there was something wrong in the system. BTW, I could not erase the code using the OBD scanner. I disconnected the battery to reset the system. When I started the engine again, the check engine light stayed off.

1,266 Posts. #28 · Jan 28, 2010. Your motor is SUPPOSED to have 5-20. 5-30 may be too heavy (if that's what went in) at lower temps causing the low oil pressure to the MDS solenoid. If you were to pour the two side by side at the same temperature, you would actually be able to see the difference in viscosity.. Brightspace tdsb

The Cylinder Deactivation System Bank 1 (P3400) is an error code that can appear on some cars. It means the car’s ECU has detected a problem with the bank 1 cylinder deactivation system. Meaning. A cylinder deactivation system is the device that allows an engine to run on a fewer number of cylinders than traditional engines.P420 & 430 codes have been there a while. We need to get oxygen sensors for both banks, see if it works. The P3400 code is new and of concern. Oil level looks fine. We've replaced oil sensor switch Bank 1 with OEM part last week. It seemed to help at first, ran better, started better at first and mileage improved. But, regardless code has remained.DTC P3400: Cylinder Deactivation System Performance Diagnostic Fault Information Circuit Short to Ground Open/High Resistance Short to Voltage Signal Performance Ignition 1 Voltage P0102, P0443, P3401, P3425, P3441, P3449 P3400, P3401, P3425, P3441, P3449--P3400 Cylinder 1 Deactivation Solenoid Control Circuit 1 P0300, P3401 P0300, P3400, P3401 ...Your vehicle's key code is necessary if you need to replace your car keys through a dealership or locksmith. Your vehicle's key code is usually stored in your owner's manual, as lo...According to the owner's manual, a flashing VTM-4 warning light on a Honda Pilot means that you should immediately pull over, slot the transmission into Park, and let the engine idle until the VTM ...Bad wiring could also cause the P3400 code. Therefore, inspect the wires that connect to the VVT system. Any frayed, broken, or burnt wires should be replaced immediately to clear the code. Other causes include: Faulty mass airflow sensor. Limited oil passage. Faulty throttle position sensors. Bad lifters.Jan 8, 2022 ... 3:39 · Go to channel · Honda code p3497 p3400 fixed link below the description part (2-2). THE EASIEST WAY TO FIX•10K views · 7:04 · Go ...BlueDriver is showing P3400 + P3497 codes. On the dash, the check engine light and VSA light are on. Driving is uneven - engine seems to shudder. At a stoplight, it almost sounds like it is going to stall. Checked oil and it was low. I added a quart. I did an oil change on 12/8! I do all my oil changes. When I did the 12/8 oil change, the oil ...go with 100% confidence that your van is A-OK. those P3400 codes mean that the VCM is not working for whatever reason, which is actually better for your engine. All it means is that the ECO mode tried to activate and failed to. The van is happy to drive with that feature disabled. Enjoy the rest of your vacation. The P3400 code is not normally a totally serious condition. Your vehicle will keep operating with 8 cylinders instead of 4. You can expect things such as an increase in engine emissions, and absolutely terrible fuel economy. P1521 Incorrect engine oil type. P3400 MDS (multi displacement system ) Rationality bank 1. P1521 by itself is a software issue there has been a TSB for this situation which involves erasing and reprograming the PCM with a new software. As for P3400 this is more complex , you may have insufficient oil pressure acting on the lifter locking pins ...honda odyssey 2017 oil pressure sensor replacement code p3400 cylinder deactivation system bank 1.P3400 code - limp home mode. My wife’s 2012 Pilot just got a light stating to ‘check emissions system’. It seemed to go into limp home mode (low power, couldn’t get over 3500 rpm) but we did make it home. I put my code reader on it and it showed P3400 code. I’ve seen the sticky on this but most people seem to indicate that theiy are ...In the world of online shopping, consumers are always on the lookout for ways to save money. Coupon codes and promo codes are two popular methods that shoppers use to get discounts...Regarding the P3400, like I said before, as long as the engine is running fine, don't worry about that yet. It might not even be an actual issue. The code is for the VCM system on the rear bank. For diagnosing that, the first step is to check the oil level and make sure it isn't low. If it is, that can cause issues like this since the system is ...It usually is the one causing P3400 code. BTW, the P3400 code will usually trigger the VSA to come on and puts your van in limp mode. Hence, you cant go over certain RPM or speed. Fix the P3400 and your VSA code will go away. the spool valve is on the driver side, in the rear of the Engine across from the firewall. OBD-II Code P3400 is defined as a Cylinder Deactivation System. In an effort to meet fuel and emissions standards, many manufacturers are utilizing cylinder deactivation systems. This system allows the engine's control module (PCM) to disable select cylinders when additional power is not needed from the engine, such as at idle or when cruising ... .

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