Code P3409

Tiny
JIM PITSINGER
  • MEMBER
  • 2017 FORD FOCUS
  • 2WD
  • AUTOMATIC
  • 96,000 MILES
What is this error code and what does it mean? I bought the car listed above used January 2021, and 3 months later I get a check engine light. Had it scanned and p3409 came up. I really can’t afford repairs much and I have to get the car emissions inspected by the end of the month. Any ideas?
Wednesday, February 2nd, 2022 AT 1:57 PM

3 Replies

Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Hello,

The code:
P3409 - Cylinder 2 Deactivation/Intake Valve Control Circuit/Open

It could be triggered for a number of reasons.
It could be due to low oil pressure, faulty cylinder deactivation solenoid, or a harness for the solenoid.

The cylinder deactivation is meant to conserve fuel and improve efficiency.

I was not sure that the Focus has cylinder deactivation.

Are you experiencing any drivability issues?

Let me know if you have any questions.
Thank you.
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Wednesday, February 2nd, 2022 AT 2:49 PM
Tiny
JIM PITSINGER
  • MEMBER
  • 2 POSTS
No driving issues, works fine but won’t pass emissions with a check engine light on. Was wondering how much it would cost to fix.
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Wednesday, February 2nd, 2022 AT 3:34 PM
Tiny
SQM
  • MECHANIC
  • 6,383 POSTS
Can you tell me what size engine is in your vehicle? Also, if it is turbo charged or naturally aspirated?

Are there any other codes?
I want to make sure that to code you got is the P3409 and not P0349.
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Wednesday, February 2nd, 2022 AT 6:49 PM

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