OBD Guide

P230C

Cylinder 3 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance

P230C is an OBD-II diagnostic trouble code meaning: Cylinder 3 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance. Common causes: dirty or faulty fuel injectors, air leaks in the intake manifold. Estimated repair cost: $17–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–89 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Dips during acceleration
  • Check Engine Light Illuminates
  • Misfire in cylinder 3

Causes

  • Dirty or faulty fuel injectors
  • Air leaks in the intake manifold
  • Oxygen sensor malfunction
  • Low compression in cylinder 3
  • Problems with the injector wiring harness

How to Fix

  1. Check the condition of the fuel injectors, clean or replace if necessary.
  2. Check the tightness of the intake tract for air leaks
  3. Check the operation of oxygen sensors
  4. Measure compression in cylinder 3
  5. Check the integrity of the cylinder 3 injector wiring harness

Related codes

Error P230C by Vehicle Brand

FAQ

What does the P230C code mean?

P230C is an OBD-II diagnostic trouble code that indicates: Cylinder 3 Air-Fuel Ratio Imbalance - Adjustment At Limit During Balance

What causes a P230C error code?

The most common causes of P230C include: Dirty or faulty fuel injectors; Air leaks in the intake manifold; Oxygen sensor malfunction; Low compression in cylinder 3.

How do I fix a P230C diagnostic trouble code?

To fix P230C: Check the condition of the fuel injectors, clean or replace if necessary.. Check the tightness of the intake tract for air leaks. Check the operation of oxygen sensors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P230C?

Yes, but get it checked soon

How much does it cost to fix P230C?

The estimated repair cost for P230C is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat