P2659 moderate

Injector E Fuel Balance Deviation - Bank 2

The P2659 code means the vehicle's onboard diagnostic system has detected: Injector E Fuel Balance Deviation - Bank 2. This is a moderate severity code.

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Keep driving?
Short distances only
DIY difficulty
hard
Estimated cost
$150 - $500 (parts and labor)
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Common Symptoms

  • Check Engine Light on
  • Subtle engine vibration
  • Inconsistent idle speed
  • Slight exhaust odor change
  • Fuel economy slightly reduced

Probable Causes (Ranked by Likelihood)

  • Worn or degraded fuel injector Very High
  • Injector seal leak allowing air intrusion High
  • Fuel rail pressure fluctuation Moderate
  • PCM fuel trim adaptation limit reached Low

Step-by-Step Diagnostic Procedure

  1. Read freeze frame data and confirm P2659 is present

  2. Perform cylinder power balance test

  3. Check injector seals for leaks

  4. Monitor short-term and long-term fuel trims during operation

Frequently Asked Questions

What does P2659 mean?

P2659 indicates a problem with the injector e fuel balance deviation - bank 2. This means the fuel delivery to one or more cylinders is not balanced properly.

Can I drive with a P2659 code?

You can drive short distances, but the engine will run rough and may cause catalytic converter damage over time. Have it diagnosed promptly.

How much does it cost to fix P2659?

Repairs typically cost $150 - $500. Injector cleaning is least expensive, while injector replacement costs more.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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