Guide To P3419 OBD Error Code Solutions

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The trouble code P3419 can be elucidated as Cylinder 3 Deactivation/Intake Valve Control Circuit Low. To provide maximum fuel economy under light load driving situations, the engine control module (ECM) would command the cylinder deactivation system ON to deactivate engine cylinders 1 and 7 on the left bank, and cylinders 4 and 6 on the right bank, switching to a V4 mode. Then the engine would work on 8 cylinders, or V8 mode, during engine starting, engine idling, and medium to heavy throttle applications.

The cylinder 3 deactivation/intake valve control circuit is being monitored by the engine control module. This trouble code would be set by the ECM when the cylinder 3 deactivation/intake valve control circuit would not be as per the specifications set by the manufacturer.

What causes this problem with the Cylinder 3 Deactivation/Intake Valve Control Circuit Low?

• Malfunctioning cylinder deactivation solenoid
• Cylinder deactivation solenoid harness might be unlocked
• Cylinder deactivation solenoid circuit might have bad electrical connection
• Malfunctioning valve lifters
• Some issues related to the mechanical failure within the engine
• There can be distorted MAF, MAP, or TP sensors

1. Exhaust Gas Recirculation Valve - Did you just see check engine light flashing on your dashboard? If the computer would detect some faults with the automobile’s EGR valve circuit, then it would set up the check engine light so that the driver is notified about the fault. Don’t waste time and get them replaced or else this fault code can turn up.
2. Engine Control Module - Dead cells in batteries can cause a failure in the engine control module. Many times, a battery is left in the rig long after a cell has died. This would affect the grounding in the car battery.
3. Manifold Absolute Pressure Sensor - The MAP sensor would fail by getting clogged, contaminated, or sometimes damaged. There can be times when the engine heat would “overcook” the electronics of the MAP sensor and can cause cracks vacuum lines. So, it is very important to take proper care of the MAP sensor and in case you need a new one, then Parts Avatar is here at your service.
4. Powertrain Control Module - If there are some faults in the PCM, then it may throw off the timing and fuel settings of the engine, which can negatively affect the performance. A flawed PCM may cause the vehicle to experience a reduction in fuel efficiency, power as well as acceleration.
5. Throttle Position Sensor - Faulty throttle position sensor can cause bucking and jerking in the vehicle. It may also cause sudden idle surges and engine stalling without any reason. Thus, replace faulty throttle position sensor now!
6. Electronic Control Unit - Do you know that the poor performance or unexplained drops in fuel economy or efficiency are often associated to onboard car computer problems, or defective ECU issues?
7. Diagnostic Tools - Use factory grade diagnostic tools to resolve OBD code P3419 error. Buy new diagnostic tools and equipment for us.

You might be thinking that how would you diagnose these problems? We at Parts Avatar Canada would help you diagnose the major symptoms easily.

Common Symptoms

• Visibility in the check engine light
• Engine misfiring issues
• The fuel consumption might be increased
• Inferior engine performance
• Appearance of the service engine soon light

Looking out for some ways with the help of which you can correct this fault code? Then you have arrived at the correct place. We are here to help you out, so you must check out the steps mentioned below as follows:

• Repair or replace the quirky cylinder deactivation solenoid
• Rehabilitate the defaults in the valve lifters
• The malfunctioning cylinder deactivation solenoid harness should be repaired or replaced as per the need
• Carefully adjust the mechanical failure within the engine
• The MAF, MAP, or TP sensors should be restored to working order
• Recondition the non-functioning cylinder deactivation solenoid circuit

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Here are some steps which you should follow in order to diagnose this fault code:

After verifying the P3419 code with an OBD-II scanner, the mechanic should begin with a visual inspection of all electrical components, especially looking for some issues in the engine oil levels and pressure. Any issues should be repaired, and the code should be cleared from the system. If the code reappears after a retest, the mechanic should then move on to performing voltage tests and resistance tests on the sensor, and comparing the information to the manufacturer’s specifications. If the readings are within the correct limits, then the sensor needs to be replaced. However, if the readings are not within the correct limits, then the issue lies elsewhere. It is essential to clean the oil passages to remove possible clogs, and replace the lifters. This process would be helpful in eliminating the most basic issues with the cylinder deactivation system, and help narrow down what could be the cause of the P3419 code. The mechanic should continue checking each possible cause, clearing the code and retesting the system after each attempt, to be sure that the correct solution is found.

Common Mistakes When Diagnosing The P3419 Code

A common mistake is to clear the error code and doing a road test after each potential solution has been performed. Now if the most common repairs would not be able to stop the illumination of the check engine light, then it would indicate that there is an intermittent issue which would require a more in-depth diagnostic procedure.