OBD Guide

P3499

Cylinder 2 Deactivation/Intake Valve Performance

P3499 is an OBD-II diagnostic trouble code meaning: Cylinder 2 Deactivation/Intake Valve Performance. Common causes: deactivation solenoid valve malfunction, intake valve mechanical problem. Estimated repair cost: $22–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$22–89 (est.)

Symptoms

  • Engine vibration
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Is On
  • Unstable operation at idle

Causes

  • Deactivation solenoid valve malfunction
  • Intake valve mechanical problem
  • Problems with hydraulic compensators
  • Engine control unit malfunction
  • Open or short circuit in control circuit

How to Fix

  1. Check the condition of the deactivation solenoid valves
  2. Diagnose the mechanics of intake valves
  3. Check hydraulic compensators
  4. Scan the control unit for errors
  5. Check the integrity of wiring and contacts

Related codes

Error P3499 by Vehicle Brand

FAQ

What does the P3499 code mean?

P3499 is an OBD-II diagnostic trouble code that indicates: Cylinder 2 Deactivation/Intake Valve Performance

What causes a P3499 error code?

The most common causes of P3499 include: Deactivation solenoid valve malfunction; Intake valve mechanical problem; Problems with hydraulic compensators; Engine control unit malfunction.

How do I fix a P3499 diagnostic trouble code?

To fix P3499: Check the condition of the deactivation solenoid valves. Diagnose the mechanics of intake valves. Check hydraulic compensators. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3499?

Yes, but get it checked soon

How much does it cost to fix P3499?

The estimated repair cost for P3499 is $22–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat