P3449 OBD-II Trouble Code: Cylinder l7 Deactivation/Intake Valve Control Circuit/Open

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P3449 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P3449 code

P3449 is a diagnostic trouble code (DTC) for "Cylinder l7 Deactivation/Intake Valve Control Circuit/Open". 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. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 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$20.00
Toyota$20.00
BMW$20.00
SCHEDULE P3449 DIAGNOSTIC Get a fair and transparent estimate upfront

P2449 code definition

The P2449 trouble code means there is an issue with the Engine Control Module when it comes to deactivating cylinder seven on the intake valve. This can cause issues with fuel economy.

What the P2449 code means

The code indicates that the control module has found that there are discrepancies from the manufacturer’s range of values for the cylinder deactivation mode and what is being detected from the MAF sensor, the TP sensor, and the MAP sensor.

What causes the P2449 code?

There are a number of potential causes for the P2449 code to appear. They include the following:

  • Low oil pressure
  • Restricted oil passage
  • Faulty cylinder deactivation solenoid
  • Engine mechanical condition
  • Cylinder deactivation solenoid harness may be open or it may be shorted
  • Cylinder deactivation solenoid circuit may have a poor electrical connection

What are the symptoms of the P2449 code?

You will find that there are really very few symptoms of the P2449 code. In most cases, you will notice that the engine light comes on or the service engine soon warning light illuminates. Other than that, there are no real indicators that there is a problem with the vehicle.

How does a mechanic diagnose the P2449 code?

Mechanics will make use of an advanced scanner: OBD-II scanner. The scanner connects to the computer on board the vehicle. The computer has stored any trouble codes related to the vehicle. They will reset the P2449 code and then run the vehicle to see if the code returns. This indicates that the problem is real and was not triggered accidentally. If the code returns, then they will try to diagnose what has caused the code to appear and make the necessary repairs and fixes to remove it.

How serious is the P2449 code?

The P2449 code will usually only cause the Check Engine light to come on, and there are not usually any other issues noticed with the vehicle. However, this does not mean it is a problem you should ignore. If you find that the onboard computer has stored the P2449 code, you should have the issue looked at and taken care of by a mechanic as soon as you can. This will ensure that your vehicle is in good running order, and that there are no other issues present.

What repairs can fix the P2449 code?

The following are some of the potential repairs that a mechanic may need to make in fixing the P2449 code.

  • Check the onboard computer in the vehicle for the code, reset the code, run the vehicle and see if the code returns

  • Replace the intake and exhaust valves

  • Check the diagnostic computer to make sure it is working properly, and replace if needed, although this is rare

Additional comments for consideration regarding the P2449 code

One of the issues with the P2449 code, as well as a number of the other trouble codes that are in existence is that they do not present any massive problems to the vehicle’s owner. Many owners believe this means that they can ignore the problem. Even though will not cause problems when you are driving, it is always in your best interest to get the vehicle serviced and have the P2449 code and any other codes fixed.

Need help with a P2449 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 1-800-701-6220.

trouble codes
P3449
Check Engine Light

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P3449 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.8/5

Number of Reviews

4,810

Rating Summary
4,424
187
47
28
124
4,424
187
47
28
124

Joel

19 years of experience
741 reviews
Joel
19 years of experience
Acura RL - Check Engine Light is on - Jacksonville, Florida
very knowledgeable and precise. able to fix electrical issues in my car. Right on time for the appointment.

Christopher

15 years of experience
41 reviews
Christopher
15 years of experience
Honda Accord - Check Engine Light is on - Fairburn, Georgia
Christopher was excellent! He explained everything in detail to make sure I understood. He was professional and provided me with the next course of actions to resolve my care issues. I'm glad he was sent to service my car.

Alexander

18 years of experience
58 reviews
Alexander
18 years of experience
Saab 9-7x - Check Engine Light is on - Kissimmee, Florida
He was very friendly and very helpful . I felt like it was being around a close friend , also gave me so very good advice on my car & future advice about it . Highly recommend mechanic, would use his services again .

Matthew

31 years of experience
639 reviews
Matthew
31 years of experience
Jeep Patriot - Check Engine Light is on - Norfolk, Virginia
Matthew was on time which was a relief, he is very knowledgeable and was easy to understand what was wrong and what was being done. I am recommending to friends and family due to the great experience Matthew gave me. Extremely professional 10/10

More related articles

P0218 OBD-II Trouble Code: Transmission Over Temperature
P0218 trouble code definition Transmission over temperature condition What the P0218 code means The P0218 code means that the transmission temperature has...
P3484 OBD-II Trouble Code: Cylinder 11 Deactivation/Intake Valve Control Circuit High
P3484 code means cylinder 11 was deactivated during certain driving conditions due to low oil pressure, engine condition, or electrical components.
The Check Engine Light Demystified
Your car Check Engine Light can mean many things. The Check Engine Light comes on when there's an electrical or mechanical problem with your car.

Related questions

Black smoke and rich fuel the codes P0191 & P0452 and short trim bank 1 & 2. Both at -28.9

Hello. You have 2 separate problems here. The P0191 (fuel rail pressure sensor circuit problem) may just be a symptom - it is reporting suspect fuel pressure on the rail. The fuel pressure on the rail is controlled by the...

Code p0421

Are there other codes set? This code, by itself, P0421 indicates that the engine management system detected the catalytic converter is performing below expected standards. This means the engine is sending contaminants (unburned fuel, oil fumes, etc.) down the exhaust,...

Having trouble with trouble code P0455.

Hi. Trouble code P0455 is for the emissions system of the car and the only effect it will have on the car is the fuel economy may go down slightly and the car will pollute the air a little more....

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.

1-800-701-6230 · hi@yourmechanic.com