OBD Guide

P02C6

Cylinder 12 - Fuel Trim at Max Limit

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Reduced engine power
  • Check Engine Light Illuminates

Causes

  • Malfunction of the fuel injector of cylinder 12
  • Air leak in intake manifold
  • Dirty or faulty oxygen sensor
  • Problems with the fuel injection system
  • Malfunction of the mass air flow sensor (MAF)

How to Fix

  1. Check the fuel injector of cylinder 12 for contamination or malfunction.
  2. Inspect the intake manifold for air leaks
  3. Check the oxygen sensors and mass air flow sensor for correct operation
  4. Test the fuel injection system
  5. If necessary, replace faulty components

Related codes

Error P02C6 by Vehicle Brand