OBD Guide

P2334

Ignition Coil L Primary Control Circuit High

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$17–67 (est.)

Symptoms

  • Misfire in a specific cylinder
  • Loss of engine power
  • Increased fuel consumption
  • Rough engine idling
  • Check Engine Light Illuminates

Causes

  • Faulty ignition coil
  • Open or short circuit in wiring
  • Poor contact in coil connectors
  • Malfunction of the ignition control module
  • Problems with the engine control unit (ECU)

How to Fix

  1. Check the condition of the ignition coil
  2. Inspect wiring and connectors for damage
  3. Check the resistance of the primary winding of the coil
  4. If necessary, replace the ignition coil
  5. Check the operation of the ignition control module

Related codes

Error P2334 by Vehicle Brand