Engine-CodesFord – P2691 Ford

P2691 Ford Code - Cylinder 6 Injector Data Incompatible

Quick Answer

The P2691 Ford diagnostic trouble code indicates that there is an issue with the fuel injector in cylinder 6 of the vehicle. Common causes include Faulty fuel injector in cylinder 6, Wiring or connector issues related to the fuel injector, Engine control module (ECM) malfunction. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
P2691 Ford indicates Cylinder 6 Injector Data Incompatible.
Common causes
Common causes include Faulty fuel injector in cylinder 6, Wiring or connector issues related to the fuel injector, Engine control module (ECM) malfunction.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code P2691 Ford Description

The P2691 Ford diagnostic trouble code indicates that there is an issue with the fuel injector in cylinder 6 of the vehicle. This means that the data being received from the fuel injector in cylinder 6 is not compatible with the engine's computer system. The fuel injector is responsible for delivering the correct amount of fuel to the cylinder for combustion. When the data being sent by the fuel injector is incompatible, it can lead to a variety of performance issues and potential long-term damage if not addressed promptly.

OBDII Code P2691 Ford - Cylinder 6 Injector Data Incompatible
P2691 Ford Code - Cylinder 6 Injector Data Incompatible

Common Causes of P2691 Ford

  1. Faulty fuel injector in cylinder 6
  2. Wiring or connector issues related to the fuel injector
  3. Engine control module (ECM) malfunction
  4. Fuel system issues
  5. Poor quality fuel or clogged fuel filter

Symptoms of P2691 Ford

  1. Rough idling or shaking while the engine is running
  2. Decreased fuel efficiency
  3. Engine misfires
  4. Check engine light is illuminated
  5. Difficulty starting the vehicle

How to Fix P2691 Ford

  1. Diagnose the specific cause of the issue using a scan tool to determine if it is the fuel injector, wiring, or ECM causing the problem.
  2. Replace the faulty fuel injector in cylinder 6 if it is determined to be the cause of the issue.
  3. Check and repair any wiring or connector issues related to the fuel injector.
  4. Test the ECM to ensure it is functioning properly, and replace if necessary.
  5. Clear the fault codes and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P2691 Ford

The cost to repair a P2691 Ford code can vary depending on the underlying cause of the issue. On average, the cost of replacing a fuel injector can range from $150 to $300 per injector, not including labor costs. Additional costs for diagnosing the issue, testing the ECM, and any necessary wiring repairs should also be taken into consideration. The total cost of repairs for this code could range from $300 to $800 or more, including parts and labor. It is recommended to consult with a certified mechanic or dealership for a more accurate estimate based on the specific make and model of the vehicle.

Tech Notes for P2691 Ford

Programming Injector must perform with an OBDII scanner capable of programming injectors.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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