AutoCodes – Dodge – P2691 Dodge

P2691 Dodge Code - Cylinder 6 Injector Data Incompatible

Quick Answer

The control functions for the fuel injection system are integrated into the Engine Control Module (ECM). Common causes include Program Injector. 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 Dodge indicates Cylinder 6 Injector Data Incompatible.
Common causes: Common causes include Program Injector.
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.

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Code Popularity 5,242

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jan 26, 2019

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P2691 Dodge Description

The control functions for the fuel injection system are integrated into the Engine Control Module (ECM). Each injector's flow rate information and cylinder position are stored in the memory of both the Glow Plug Control Module (GPCM) and the ECM. The fuel injector flow rate programming must be done when any of the following procedures are performed: The ECM is replaced, the GPCM is replaced, or any fuel injectors are replaced.
If the ECM does not communicate, the flow rate information can be retrieved from the GPCM. If both control modules fail to communicate, the fuel injector flow rate information, or Injection Quantity Adjustment (IQA) flow rate numbers, will need to be retrieved from each injector.

OBDII Code P2691 Dodge - Cylinder 6 Injector Data Incompatible - AutoCodes.com — P2691 Dodge Code - Cylinder 6 Injector Data Incompatible

What does this mean?

What are the Possible Causes of the DTC P2691 Dodge?

Program Injector

How to Fix the DTC P2691 Dodge?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

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

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2691 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Need Help with the Code?

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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.

Frequently Asked Questions about P2691 Dodge Code

1. What are the common symptoms of OBDII code P2691 in a Dodge related to Cylinder 6 Injector Data Incompatible?

- Common symptoms include rough idling, reduced engine performance, misfires, and potentially poor fuel efficiency.

2. What are the possible causes of OBDII code P2691 in a Dodge indicating Cylinder 6 Injector Data Incompatible?

- Potential causes may include a faulty fuel injector, issues with the injector wiring or connectors, ECM (Engine Control Module) problems, or software glitches.

3. How can I diagnose the issue causing OBDII code P2691 in a Dodge with Cylinder 6 Injector Data Incompatible?

- Diagnosis involves checking the fuel injector for proper operation, inspecting the wiring and connectors, and using a scan tool to analyze the ECM data for any inconsistencies.

4. Can OBDII code P2691 in a Dodge be triggered by other underlying issues besides injector problems?

- Yes, other underlying issues such as fuel system issues, vacuum leaks, or engine mechanical problems can potentially trigger this code.

5. What are some repair tips for resolving OBDII code P2691 in a Dodge related to Cylinder 6 Injector Data Incompatible?

- Repair tips may include cleaning or replacing the fuel injector, repairing any wiring issues, updating the ECM software, and conducting a thorough inspection of the fuel system.

6. Is it safe to continue driving my Dodge with the OBDII code P2691 indicating Cylinder 6 Injector Data Incompatible?

- It is not recommended to drive the vehicle with this code active, as it can lead to further engine damage and potential safety hazards. It's best to address the issue promptly.

7. How much does it typically cost to repair OBDII code P2691 in a Dodge due to Cylinder 6 Injector Data Incompatible?

- The cost of repair can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, considering parts and labor.

8. Can I reset the OBDII code P2691 in my Dodge related to Cylinder 6 Injector Data Incompatible without fixing the underlying problem?

- While you can clear the code temporarily, it will likely reappear if the root cause is not addressed. It's essential to fix the issue to prevent ongoing problems.

9. Are there any preventive measures to avoid OBDII code P2691 in a Dodge associated with Cylinder 6 Injector Data Incompatible?

- Regular maintenance, such as fuel system cleaning, using quality fuel, and addressing any engine issues promptly, can help prevent injector-related problems and associated codes.

10. How long does it take to repair OBDII code P2691 in a Dodge caused by Cylinder 6 Injector Data Incompatible?

- The repair time can vary based on the specific diagnosis and extent of the issue. It may take a few hours to a full day for the repair to be completed by a professional technician.