OBD Guide

P3450

Cylinder 7 Deactivation/Intake Valve Control Circuit Performance

P3450 is an OBD-II diagnostic trouble code meaning: Cylinder 7 Deactivation/Intake Valve Control Circuit Performance. Common causes: malfunction of the cylinder deactivation solenoid valve, open or short circuit in control circuit. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Unstable engine operation
  • Power Loss
  • Increased fuel consumption
  • Check Engine Light Illuminates
  • Disabling the cylinder deactivation system

Causes

  • Malfunction of the cylinder deactivation solenoid valve
  • Open or short circuit in control circuit
  • Wiring Harness Problems
  • Engine control unit malfunction
  • Mechanical problems with the timing system

How to Fix

  1. Check the condition of the solenoid valve of cylinder 7
  2. Check the integrity of the control circuit and connections
  3. Inspect the wiring harness for damage
  4. Check the operation of the timing system
  5. If necessary, replace faulty components

Related codes

Error P3450 by Vehicle Brand

FAQ

What does the P3450 code mean?

P3450 is an OBD-II diagnostic trouble code that indicates: Cylinder 7 Deactivation/Intake Valve Control Circuit Performance

What causes a P3450 error code?

The most common causes of P3450 include: Malfunction of the cylinder deactivation solenoid valve; Open or short circuit in control circuit; Wiring Harness Problems; Engine control unit malfunction.

How do I fix a P3450 diagnostic trouble code?

To fix P3450: Check the condition of the solenoid valve of cylinder 7. Check the integrity of the control circuit and connections. Inspect the wiring harness for damage. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3450?

Limited driving only, diagnose soon

How much does it cost to fix P3450?

The estimated repair cost for P3450 is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat