OBD Guide

P219C

Cylinder 1 Air-Fuel Ratio Imbalance

P219C is an OBD-II diagnostic trouble code meaning: Cylinder 1 Air-Fuel Ratio Imbalance. Common causes: dirty or faulty fuel injectors, problems with the ignition system in cylinder 1. Estimated repair cost: $17–89.

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

Symptoms

  • Unstable engine operation
  • Increased fuel consumption
  • Power Loss
  • Dips during acceleration
  • Check Engine Light Illuminates

Causes

  • Dirty or faulty fuel injectors
  • Problems with the ignition system in cylinder 1
  • Vacuum leak in cylinder 1
  • Oxygen sensor malfunction
  • Compression problems in cylinder 1

How to Fix

  1. Check the condition of the fuel injectors
  2. Diagnose the ignition system of cylinder 1
  3. Check the tightness of the intake tract
  4. Check the operation of oxygen sensors
  5. Measure compression in cylinder 1

Related codes

Error P219C by Vehicle Brand

FAQ

What does the P219C code mean?

P219C is an OBD-II diagnostic trouble code that indicates: Cylinder 1 Air-Fuel Ratio Imbalance

What causes a P219C error code?

The most common causes of P219C include: Dirty or faulty fuel injectors; Problems with the ignition system in cylinder 1; Vacuum leak in cylinder 1; Oxygen sensor malfunction.

How do I fix a P219C diagnostic trouble code?

To fix P219C: Check the condition of the fuel injectors. Diagnose the ignition system of cylinder 1. Check the tightness of the intake tract. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P219C?

Limited driving only, diagnose soon

How much does it cost to fix P219C?

The estimated repair cost for P219C is $17–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat