OBD Guide

P3424

Cylinder 3 Exhaust Valve Control Circuit High

P3424 is an OBD-II diagnostic trouble code meaning: Cylinder 3 Exhaust Valve Control Circuit High. Common causes: open or short circuit in wiring harness, faulty vvt solenoid valve. Estimated repair cost: $17–78.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–78 (est.)

Symptoms

  • Loss of engine power
  • Unstable idling
  • Increased fuel consumption
  • Check Engine Light Illuminates
  • Possible misfire in cylinder 3

Causes

  • Open or short circuit in wiring harness
  • Faulty VVT solenoid valve
  • Poor electrical contact in connectors
  • Mechanical malfunction of the timing system
  • Problems with the engine control unit

How to Fix

  1. Check the integrity of wiring and connections in the control circuit
  2. Test VVT solenoid valve resistance
  3. Check the power and ground of the control circuit
  4. Inspect the mechanical components of the VVT system
  5. If necessary, replace the solenoid valve or repair the wiring

Related codes

Error P3424 by Vehicle Brand

FAQ

What does the P3424 code mean?

P3424 is an OBD-II diagnostic trouble code that indicates: Cylinder 3 Exhaust Valve Control Circuit High

What causes a P3424 error code?

The most common causes of P3424 include: Open or short circuit in wiring harness; Faulty VVT solenoid valve; Poor electrical contact in connectors; Mechanical malfunction of the timing system.

How do I fix a P3424 diagnostic trouble code?

To fix P3424: Check the integrity of wiring and connections in the control circuit. Test VVT solenoid valve resistance. Check the power and ground of the control circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P3424?

Limited driving only, diagnose soon

How much does it cost to fix P3424?

The estimated repair cost for P3424 is $17–78. Actual cost depends on your vehicle, location, and labor rates.

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