OBD Guide

P3449

Cylinder 7 Deactivation/Intake Valve Control Circuit/Open

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Increased fuel consumption
  • Uneven engine operation
  • Check Engine Light Illuminates
  • Reduced engine power
  • Disabling the cylinder deactivation system

Causes

  • Open circuit control
  • Solenoid valve malfunction
  • Wiring Harness Problems
  • Engine control unit malfunction
  • Mechanical problems of the timing system

How to Fix

  1. Check the integrity of the control circuit
  2. Check the operation of the solenoid valve
  3. Inspect the wiring harness for damage
  4. Check connector connections
  5. If necessary, replace faulty components

Related codes

Error P3449 by Vehicle Brand