P3419 OBD-II Trouble Code: Cylinder 3 Deactivation/Intake Valve Control Circuit Low

Our certified mechanics come to you · Get a fair and transparent estimate upfront

Red-stars EXCELLENT RATING ON

Cost of diagnosing the P3419 code

P3419 is a diagnostic trouble code (DTC) for "Cylinder 3 Deactivation/Intake Valve Control Circuit Low". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $114.99 . Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.0 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford $114.99 $20.0
Toyota $114.99 $20.0
BMW $124.99 $20.0
SCHEDULE P3419 DIAGNOSTIC Get a fair and transparent estimate upfront

P3419 code definition

Detecting the P3419 code indicates that there has been a malfunction when the cylinder deactivation mode was activated. It is often associated with many other codes relating to cylinder deactivation, such as the P3400 code.

What the P3419 code means

Under certain situations, some engines will deactivate specific cylinders in order to improve engine performance and fuel economy. Deactivation is controlled by solenoids, which prevent the valve lifters from opening valves by restricting oil flow. There are sensors that monitor this process, the MAF sensor, the MAP sensor, and the TP sensor. If the PCM detects that the values from these sensors are lower than the programmed values based on the manufacturer’s specifications, it will store the P3419 code.

What causes the P3419 code?

Low oil pressure, or restricted oil flow, is often to blame for the P3419 code. Other causes may include:

  • A mechanical failure within the engine
  • Faulty cylinder deactivation solenoid
  • Open or shorted cylinder deactivation solenoid harness
  • Poor connection in the electrical circuit of the cylinder deactivation solenoid
  • Faulty MAF, MAP, or TP sensors
  • Faulty valve lifters

What are the symptoms of the P3419 code?

The only common symptom of the P3419 code is the illumination of the Check Engine Light; however, there may also be some vibration in the engine.

How does a mechanic diagnose the P3419 code?

In order to pinpoint the root cause of the P3419 code, a mechanic will likely take some or all of the following steps:

  • Check the engine oil levels and pressure, and ensure that both are correct.

  • Collect diagnostic codes from the PCM with an OBD-II scanner, and assess for related codes that could give clues as to what is malfunctioning.

  • Use a scan tool to test the proper solenoid, and repair or replace a malfunctioning solenoid.

  • Clean any oil passages to remove possible clogs, and replace the lifters.

This process will eliminate the most basic issues with the cylinder deactivation system, and help narrow down what could be the cause of the P3419 code.

Common mistakes when diagnosing the P3419 code

When diagnosing the cause of the P3419 code, the most common mistake is forgetting to clear the code and do a road test after each potential solution is performed. If the most common repairs do not stop the Check Engine light from reappearing, it can be a sign of an intermittent issue that requires a more in-depth diagnostic procedure.

How serious is the P3419 code?

If this code is present in the PCM memory, the vehicle should still be operational. However, in most cases there will be an increase in emissions and a loss of fuel economy. The vehicle may not operate as optimally as it could, and it may not pass an emissions test, until the issue that caused the P3419 code is addressed.

What repairs can fix the P3419 code?

In order to repair issues that cause the P3419 code to be stored in the PCM, there are several areas a mechanic may consider. These repairs could include:

  • Replacing defective cylinder deactivation solenoids.

  • Clearing all deactivation solenoid oil passages of grime, build-up, and clogs.

  • Replacing the lifters.

  • Replacing or repairing faulty solenoid harnesses.

  • Replacing faulty sensors.

  • Disassembling the engine and cleaning the entire thing, paying close attention to dirt and oil sludge.

Additional comments for consideration regarding the P3419 code

While this code does not represent a vitally serious issue, it does sometimes represent a very complex repair, that can quickly become a big job. In order to repair this issue correctly, mechanics often need many years of experience and knowledge. This may not be a job for even the handiest of DIY-ers.

Need help with a P3419 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

Check Engine Light
trouble codes
P3419

No more waiting rooms! Our mechanics will come to you to diagnose and fix the P3419 code.

SCHEDULE P3419 DIAGNOSTIC
Get a $20 credit for the follow-up repair

Recent Check Engine Light is on Inspection reviews

Excellent Rating

(7400)

Rating Summary
6879
249
58
41
173
6879
249
58
41
173
 at YourMechanic

David

13 years of experience
393 reviews
David
13 years of experience
Chevrolet Malibu L4-2.4L - Check Engine Light is on Inspection - Marietta, Georgia
He explained everything to me in detail on what I needed to know about my car. Definitely recommend him for getting the job done.
 at YourMechanic

Raymond

37 years of experience
402 reviews
Raymond
37 years of experience
Toyota Camry L4-2.2L - Check Engine Light is on - Las Vegas, Nevada
Raymond did a great job however I was charged for two hours labor and he was only here less than 45 minutes. should I expect this on future appointments with your mechanic ?
 at YourMechanic

Shane

17 years of experience
217 reviews
Shane
17 years of experience
Volkswagen EuroVan V6-2.8L - Check Engine Light is on Inspection - Austin, Texas
Arrived on time. Explained the issues he found and how he will fix it. I have parts on order and will schedule an appointment to have Shane install the parts when they arrive.
 at YourMechanic

Kanstantsin

19 years of experience
51 reviews
Kanstantsin
19 years of experience
Ford F-150 V8-4.6L - Check Engine Light is on Inspection - Littleton, Colorado
Kanstantsin arrived early. Was very courteous and professional. Will highly recommend to anyone. Thank you Kanstantsin.


More related articles

P3449 OBD-II Trouble Code: Cylinder l7 Deactivation/Intake Valve Control Circuit/Open
P3449 means there is an issue with the Engine Control Module via the intake valve due to low oil pressure, or faulty solenoid.
P0882 OBD-II Trouble Code: TCM Power Input Signal Low
P0882 means low voltage is coming from the transmission control module circuit, caused by low battery voltage or an open or short circuit.
B1336 OBD-II Trouble Code: Door Ajar Right Rear Circuit Open
B1336 means there is an error with the door ajar right rear circuit, likely due to a faulty door ajar switch or circuit, or defective door latch.

Related questions

Getting a trouble code for knock sensor
Hi there. I would recommend having a technician come out and replace the knock sensor on the car. The knock sensor is on the engine block and detects if there is a misfire in the engine or a spark knock....
Engine running rough and light now on.
Yes you could have bad fuel in the system if that is the case. However, you may want to check and make sure your fuel filter (https://www.yourmechanic.com/services/fuel-filter-replacement) is good, and make sure there are no extra leaks in the the...
P0089 code, fuel pressure regulator performance low. Went into limp mode, then next morning no start
After doing a little research on your particular situation, it looks as though this is a fairly common problem with this model of vehicle. I would suggest contacting your local dealership about the situation due to the fact that I...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1 (855) 347-2779 · hi@yourmechanic.com