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P219DPowertrainMonitor

Cylinder #2 Imbalance Error

This code means the PCM/ECM has detected an imbalance detected in that cylinder affecting cylinder #2. Because combustion on the affected cylinder or circuit is disrupted, drivers may notice rough running, misfires, hard starts, or reduced power.

Monitor closely — watch for other symptoms. Safe to drive short distances for now.

What You Might Notice

  • Check Engine Light illuminated
  • Rough idle or misfire
  • Hard starting
  • Reduced power
  • Poor fuel economy

Most Common Causes

  1. 1

    Failed ignition coil, glow plug, or related component

  2. 2

    Damaged wiring or poor connector contact

  3. 3

    Worn spark plug or combustion problem

  4. 4

    Low system voltage or ground issue

  5. 5

    PCM/ECM driver fault

How to Diagnose It

  1. 1

    Check Failed ignition coil, glow plug, or related componentInspect for signs of failure and test before replacing.

  2. 2

    Check Damaged wiring or poor connector contactInspect for signs of failure and test before replacing.

  3. 3

    Check Worn spark plug or combustion problemInspect for signs of failure and test before replacing.

  4. 4

    Check Low system voltage or ground issueInspect for signs of failure and test before replacing.

  5. 5

    Check PCM/ECM driver faultInspect for signs of failure and test before replacing.

How to Fix It

  1. 1

    Test the affected coil, glow plug, or ignition-related component

  2. 2

    Inspect spark plugs and basic engine condition

  3. 3

    Repair damaged wiring, grounds, or connector pins

  4. 4

    Replace the failed ignition-related part

  5. 5

    Clear the code and confirm the symptom is gone

Need a deeper diagnosis?

Search for related repair guides or browse by system.