Error Code P3405: What It Means & What To Do?

<<See All OBD Codes

The OBD-II Code Declined engine performance is a means of a Cylinder 1 Exhaust Valve Control Circuit/Open.

When you turn the key to ON mode, sometimes the fuel pump will not be priming. You can start by measuring the fuel pressure and detecting if you are getting a bright white-bluish spark for all the four plugs. You should also check the mechanical timing as we described before. Once you’ve noticed the P3405 engine trouble code reading using your scanner, seeing this description will guide you.

In an attempt to encounter fuel and emissions qualities, numerous manufacturers are using cylinder deactivation systems. This system enables the engine's control module (PCM) to deactivate appointed cylinders when power is added, but not required by the engine, for instance at idle or while coasting on the roadway. Whenever the engine's control module (PCM) finds out that the Exhaust Valve for cylinder 1 is not turning ON or OFF in the manner it’s to be demanded, the PCM will position code P3405.

What causes this problem with the Cylinder 1 Exhaust Valve Control Circuit/Open?

• Defective variable valve timing solenoid
• Dropped engine oil level or pressure
• Limited oil passage
• Defective or damaged wiring
• Damaged, corroded or loose connector
• Faulty ECM

1. ECM - An illuminated Check Engine Light is a major sign of an error related to the Engine Control Module. The Check Engine Light normally starts to illuminate when the computer identifies an issue that is related to all the sensors or circuits. In few circumstances, the ECM triggers a Check Engine Light by mistake, or if there is no present issue. Doing a scan on the computer for error codes can assist with detecting whether or not there is a problem with the ECM, or the area of where the issue is found on the vehicle. Irregular engine behaviour is another major sign of a faulty or failing ECM. A failed computer could result in a vehicle to encounter irregular errors like stalling or misfiring. These symptoms might come and go, and might not show any kind of order to their consistency or extremity. Engine operation problems are another major sign of a critical issue related to the ECM. If the ECM is encountering any problems, it might lead to timing and fuel settings to negatively affect the operation of the vehicle. A defective ECM might cause the vehicle to be faced with a decrease in fuel efficiency, power, and acceleration. A vehicle that fails to start or keeps from restarting is another major sign of a faulty or failed ECM. If the ECM fails entirely, the vehicle will stay dealing with a loss of engine power control, and will fail to start or perform as an outcome. The engine might still be cranking, but will fail to start if facing any missing vital inputs from the computer. A vast range of other problems can result in this symptom, so it’s an excellent approach to do a rigorous diagnosis that is run by a professional mechanic that will continue to check out the result.
2. PCM - An illuminated Check Engine Light is a major symptom of a problem is related to the Engine Control Module. The Check Engine Light regularly turns on when the computer checks a problem related to any of the sensors or circuits. These are cases when the ECM activates a Check Engine Light to illuminate by mistake, or when no present issue is evident. Ensure a mechanic is scanning the computer for trouble codes to diagnose whether the error is associated with the ECM, or another place within the vehicle. Abnormal engine operation could also check a defective or failing ECM. A faulty computer could result in the vehicle to erratically stall or misfire. The symptoms might come and go, but not display action under any type of pattern of their continuity or intensity. Engine operation problems are another symptom of a crucial problem related to the ECM. If the ECM is encountering any errors, it might result in timing and fuel settings within the engine to negatively affect the operation process. A faulty ECM might result in the vehicle to encounter a reduction in fuel efficiency, power, and acceleration. A bad ECM may lead to a vehicle that is failing or prevents from starting. If the ECM fails completely, the vehicle will remain without any engine management control, and will start or perform as a result.The engine could still be cranking, but it will restart, and not have any crucial inputs from the computer. The ECM will not completely lead to any problems in starting the vehicle, so it is best to operate a diagnosis by consulting with a professional mechanic to persist in checking the major outcome. A bad fuel economy could occur during when the ECM is failing. A faulty ECM refuses the engine from being familiar with the quantity of fuel burning inside the combustion system. Regularly, the vehicle consumes more fuel than it demands in this scenario. As an outcome, you will be paying more on fuel than you need to with a running ECM.
3. Exhaust Valve - A major symptom of an error with the exhaust pressure valve is an engine operation problem. If the valve gets obstructed or plugged it can affect the engine operation. A defective exhaust pressure valve might result in the vehicle to encounter a decrease in power, acceleration, fuel efficiency, and in a few scenarios, hard starting as well. Another symptom of a possible issue with the exhaust pressure valve is too much smoke or soot coming out of the exhaust. For diesel engines built with these parts, the exhaust pressure valve has a crucial task for inside the correct engine combustion. Problems with it can disrupt the readily fragile combustion system of diesel engines, which can result in black smoke and soot being released by the exhaust pipe. A Check Engine Light that illuminates is another symptom of a viable issue related to the exhaust pressure valve. If the computer finds a problem with the exhaust pressure valve’s circuit, signal, or position, then it will activate a Check Engine Light as a way to warn the driver of a possible error. An illuminated Check Engine Light can also launch a vast range of other problems, so scanning the computer for error codes is highly advised.
4. Engine Oil - If the cool viscosity of your oil is too much, also too thick, then you may not likely be able to start your vehicle under those cool temperatures. When this often happens, it makes the oil become so thick that it cannot properly lubricate all moving parts and this leads to excessive resistance while the vehicle is getting started. If you expend synthetic oil inside a vehicle with older or higher mileage, you might start to accumulate small oil leaks that you wouldn't have received if you had used conventional motor oil. This is all due to a range of flow attributes that synthetic oils contain, which conventional oils do not contain. It allows the oil to push its way in past smaller gaps than normal oil. Consuming synthetic oil in these cases will not ultimately result in any kind of damage, so you may be seeing drops of oil spread around on your garage floor or a burning smell when you are driving. When this oil is slowly leaking, you might be eager to pay closer attention to your oil level and top it off when needed. Switching back to conventional oil while doing an oil change is strongly recommended. Some vehicles will simply not operate the correct way as it consumes synthetic oils. If the motor oil with a hot viscosity is not sufficiently high, the oil could start to break down under extremely hot conditions and will fail to lubricate the components of the engine properly. This will eventually cause the oil to burn. Over time, this can finally damage your engine due to excessive friction between metal components. If your motor oil has excessive thickness to consume for their range of settings, your fuel mileage will possibly suffer. This is because of the viscosity of oil hikes up resistance on inspecting parts like pistons. When giving the right protection on your engine, it will be more costly if taking more journeys to the gas station. If you expend motor oil with too thin a viscosity for these types of settings, you may hear your engine produce a ticking noise. Your engine will regularly produce the loudest noise after starting and relatively decreasing after driving about for a period of time. This happens if engine oil has a proper weight that results in doing a lousy job of coating and lubricating all engine components. You can hear metal components like valves and valve lifters collide with other metal components. A brief shift to a variety of oil viscosity might resolve the issue.
5. Valve Timing Solenoid - Whenever an Engine Control Unit (ECU) regulates today’s vehicles, almost all-individual components are monitored by the ECU. When an individual component begins to fail, the ECU will supply a certain trouble code that will allow a mechanic to utilize a scanner that simply checks if an error is increasing. When the code has run in past the system, it will warn the driver by actuating a specific zone warning light to illuminate. The Check Engine Light is the most common light to illuminate to in use, it is important for a vehicle owner to contact a professional mechanic to inspect the vehicle, using the right diagnostic scan tool to download the code and check the precise reference of the problem. In fact, there are many individual codes of a VVT solenoid error for every vehicle manufacturer. As early as when the mechanic has this correct data, they can start to solve the certain problem. The VVT solenoid runs at top value, when the engine oil is cleansed, free of debris, or lost a certain amount of lubrication or viscosity. When the engine oil becomes clogged with dirt, debris or other external matter, it eventually clogs up the passageways from the solenoid to the VVT chain, and the gear. If you failed to change your engine oil outside of a specific time frame, it could damage the VVT solenoid, the VVT chain, and the gear drive. To stop this occurrence from progressing, make sure to change your engine oil as recommended by the vehicle manufacture. Usually, the VVT system fails to actuate before the engine becomes set to a high RPM or is directed into the course of loading bearing settings, for instance driving uphill. Whatsoever, if the VVT solenoid fails to operate, it is possible to sustain expending additional engine oil to the VVT gears. This can result in the engine to idle rough, specifically the engine RPM will shift when the system is activated. If you do not continue to inspect this, it can lead to further engine components that will wear down even earlier. If your engine idles become rough, make sure to reach a professional mechanic to inspect this issue as soon as possible. The motive of variable valve timing is to ensure the valves open and close at the right time frame to improve engine performance and reduce fuel expenditure. As the VVT solenoid fails to perform, the entire system can be compromised, which could result in an intake and exhaust valves to open and close at the improper time slot. This normally causes the fuel economy to endure a powerful reduction.
6. Intake Valve - Popping or ticking sounds are the most common kinds of sounds you will notice when you are encountering errors with your valves. You will frequently hear this ticking sound before you see another issue. This sound will get louder and quicker when the engine accelerates. It normally displays a section of the valve train components that either wears away or does not align, or that your engine is not given sufficient lubrication. A majority of vehicles consist of hydraulic lifters, and these lifters require continuous lubrication and pressure sustained at an exact level. If the pressure is slightly offset, it excels the reaction or inconsistent movement inside the valve train. Blue smoke is a common sign of utmost engine problem and you shouldn’t ever ignore this sign. Moreover, blue smoke is not particularly an outcome of valve issues, since it is among the most common specifications, especially when mixed with popping and ticking sounds. When valve guides and seals wear down, this enables oil to enter into the combustion chamber and burn together with the fuel. In addition, you will see that your oil levels continue to plummet, or you frequently have to add on oil, and you have suppressed all leaks. Normally, the quantity of blue smoke you notice with the valve guide and seal failure is very slight and scarcely detectable. If you are spitting out a huge quantity of smoke, then you might be encountering more extreme issues like damaged or worn-down piston rings. It is better to consult with a professional mechanic to check where the engine problem is located and when you are faced with this kind of issue. Another sign that you are dealing with valve issues is that you often see a decrease in engine power and performance. Valves are applicable to fitting snugly into the seats and enable for much less space. If your valve guides and seals happen to leak, oil can build up atop of the valve and result in a loss of seating or power and combustion. Burning valves are another issue that results in power shortfalls. A burning valve is susceptible of losing material and even causes massive holes that are leaking gases and decreases compression. Numerous parts results in burning valves, but among the most generic explanations is to disregard seals and guides that are leaking, or fail to repair other compression issues. You can combine these problems with a cooling system or EGR (exhaust gas re-circulation) problem, and you are most susceptible of burning all the valves. These circumstances should not be avoided, since they are related to the valve, and can get even worse and expensive down the way. Otherwise, it is easy to prevent this from happening again, or be detained with the correct engine sustenance. Make sure to change your oil on a regular basis, and repair any other engine problem without any delay.

Our major objective is to succeed in satisfying our customers and this is why we will assist you to diagnose P3405 code by listing a few major symptoms as follows:

Common Symptoms

• Growing fuel consumption
• Bad engine performance
• Engine misfire
• Illuminated Service Engine Soon light
• Illuminated Check Engine light

It is highly crucial to repair the error code P3405. So, we have written down a few steps that will help you solve this problem:

• After the codes are cleared, test drive the vehicle to see if the code returns
• Whenever the resistance level does not reduce with heat and hikes in cooler temperature, exchange the sensor. If everything has been detected so far, turn the key to the ON mode and inspect for the occurrence of a voltage, and a ground signal, at the exhaust gas temperature/pressure sensor electrical connector or heated oxygen sensor.
• Numerous vehicles are applicable to use an electronically regulated valve in the automatic transmission cooler lines to control the stream of fluid to the cooler on its own.
• Whenever the fuel shutoff switch and all system circuitry get checked out, surmise a faulty PCM or other associated controller.

Our team at Parts Avatar Canada is available to solve all your problems associated with automotive components. We have stored a vast extension of excellent priced ECM, PCM, Exhaust Valve, Engine Oil, Valve Timing Solenoid, Intake Valve and even more to guide you in repairing your vehicle.

It is crucial to diagnose this error code. We provide are a few steps that a mechanic should read to diagnose the error that actuated a P3405 code to be supplied:

• First step to determine the error with this procedure for any malfunction is to research on the Technical Service Bulletins (TSB's) to specify the precise vehicle by year, model and engine.
• In few circumstances, you can save far more time and money by routing yourself into the correct direction.
• Second step is determining the setting of the engine oil and affirm it is maintained at the right level. Next step is to find out where all parts are related to the cylinder 1 deactivation intake valve control circuit and check for any evident physical damage. Referring to the specific vehicle, this circuit might intermix numerous parts that come with the deactivation solenoid, switches, defect signals and ECM. Conduct a rigorous visual test to specify the related wiring for evident faults like scraping, rubbing, bare wires, or burn spots. Next step is to check the connectors and connections for all security, damaged and corroded pins. This process has to come with all wiring connectors and connections to all parts that include the ECM. Refer to a particular source of technical data for the vehicle to make sure the arrangement of the cylinder 1 deactivation/intake valve control circuit and affirm each part is intermixed within the circuit, which might include a fuse or a fuse-able connection.

Advanced Steps - The advanced steps get very automotive specific and need the correct advanced equipment to operate consistently. This process needs a digital multi meter and the certain technical sources for the vehicle.

Voltage Checks - The sourced voltage and the correct ratios might differ based on the certain vehicle and the circuit arrangement. Particular technical data will come with troubleshooting charts and the right order to read through to support you with a consistent diagnosis. If this process specifies there is a missing power source or ground, progression testing might be needed to detect the durability and strength of the wiring, connectors and other parts. Progression tests should constantly be conducted with the power swapped from the circuit and the usual readings for wiring and connections have to be a resistance of 0 ohms.

Common Mistakes When Diagnosing the P3405 Code

• Oil level is too low in engine
• Failed Powertrain Control Module (PCM)
• Failed Variable valve timing solenoid
• Wiring problem