OBD Guide

P230E

Cylinder 5 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance

P230E is an OBD-II diagnostic trouble code meaning: Cylinder 5 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance. Common causes: dirty or faulty fuel injectors, vacuum leaks in cylinder 5. Estimated repair cost: $17–89.

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

Symptoms

  • Unstable engine idling
  • Reduced engine power
  • Increased fuel consumption
  • Dips during acceleration
  • Check Engine Light Illuminates

Causes

  • Dirty or faulty fuel injectors
  • Vacuum leaks in cylinder 5
  • Problems with the ignition system in cylinder 5
  • Oxygen sensor malfunction
  • Worn spark plug in cylinder 5

How to Fix

  1. Check the condition of the fuel injectors, especially cylinder 5
  2. Investigate possible air leaks in the intake tract
  3. Check the spark plugs and ignition coil of cylinder 5
  4. Diagnose the operation of oxygen sensors
  5. Test compression in cylinder 5

Related codes

Error P230E by Vehicle Brand

FAQ

What does the P230E code mean?

P230E is an OBD-II diagnostic trouble code that indicates: Cylinder 5 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance

What causes a P230E error code?

The most common causes of P230E include: Dirty or faulty fuel injectors; Vacuum leaks in cylinder 5; Problems with the ignition system in cylinder 5; Oxygen sensor malfunction.

How do I fix a P230E diagnostic trouble code?

To fix P230E: Check the condition of the fuel injectors, especially cylinder 5. Investigate possible air leaks in the intake tract. Check the spark plugs and ignition coil of cylinder 5. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P230E?

Limited driving only, diagnose soon

How much does it cost to fix P230E?

The estimated repair cost for P230E is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat