OBD Guide

P0296

Cylinder 12 Contribution/Balance

P0296 is an OBD-II diagnostic trouble code meaning: Cylinder 12 Contribution/Balance. Common causes: fuel injector malfunction, problems with the ignition system (plugs, coils). Estimated repair cost: $56–222.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–222 (est.)

Symptoms

  • Uneven engine operation
  • Power reduction
  • Increased fuel consumption
  • Vibrations at idle

Causes

  • Fuel injector malfunction
  • Problems with the ignition system (plugs, coils)
  • Low cylinder compression
  • Valve contamination or damage
  • Problems with fuel supply (fuel pump, filter)

How to Fix

  1. Check the condition of the spark plugs and coils
  2. Diagnose the fuel injector of cylinder 12
  3. Measure the compression in the cylinder
  4. Check the tightness of the intake tract
  5. Analyze scanner data in real time

Related codes

Error P0296 by Vehicle Brand

FAQ

What does the P0296 code mean?

P0296 is an OBD-II diagnostic trouble code that indicates: Cylinder 12 Contribution/Balance

What causes a P0296 error code?

The most common causes of P0296 include: Fuel injector malfunction; Problems with the ignition system (plugs, coils); Low cylinder compression; Valve contamination or damage.

How do I fix a P0296 diagnostic trouble code?

To fix P0296: Check the condition of the spark plugs and coils. Diagnose the fuel injector of cylinder 12. Measure the compression in the cylinder. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P0296?

Limited driving only, diagnose soon

How much does it cost to fix P0296?

The estimated repair cost for P0296 is $56–222. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat