AutoCodes – GMC – P2694 GMC

P2694 GMC Code - Cylinder 9 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: P2694 GMC indicates Cylinder 9 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 1,298

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 P2694 GMC 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 P2694 GMC - Cylinder 9 Injector Data Incompatible - AutoCodes.com — P2694 GMC Code - Cylinder 9 Injector Data Incompatible

What does this mean?

What are the Possible Causes of the DTC P2694 GMC?

Program Injector

How to Fix the DTC P2694 GMC?

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 P2694 GMC 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.

Need more information about the P2694 GMC code?

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Need Help with the Code?

Get the P2694 GMC code diagnosed by a professional: Find a repair shop in your area

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 P2694 GMC Code

What does the OBDII code P2694 mean for my GMC vehicle?

P2694 indicates that there is an incompatibility with the data from the cylinder 9 fuel injector, suggesting a possible issue with the injector itself or the engine control module (ECM).

What are the common symptoms of the P2694 code?

Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and a check engine light illuminated on the dashboard.

What could cause the P2694 code to trigger?

Possible causes include a faulty cylinder 9 fuel injector, wiring issues, a malfunctioning ECM, or issues with the fuel delivery system.

How can I diagnose the P2694 code?

To diagnose the P2694 code, you can start by using an OBDII scanner to confirm the code, inspect the fuel injector and its wiring, check for vacuum leaks, and ensure that the fuel system is functioning properly.

What are some common repairs for the P2694 code?

Common repairs may include replacing the faulty cylinder 9 fuel injector, repairing or replacing damaged wiring or connectors, or reprogramming or replacing the ECM if it is found to be faulty.

Can I drive my vehicle with the P2694 code?

While it's possible to drive with the P2694 code, it is not advisable, as it may lead to further engine damage over time due to misfires or poor fuel delivery.

How can I prevent the P2694 code from returning after repairs?

To prevent the P2694 code from returning, ensure that all repairs are performed correctly, maintain the fuel system, regularly replace fuel filters, and keep an eye on injector performance.

Is there a risk of damaging my engine if I ignore the P2694 code?

Yes, ignoring the P2694 code can lead to engine misfires, potentially causing further damage such as catalytic converter failure or increased wear on engine components.

What should I do if the P2694 code comes back after repairs?

If the P2694 code returns after repairs, you should perform further diagnostics to check for underlying issues, inspect all related components, and possibly consult a professional mechanic for a more in-depth analysis.