AutoCodes – Generic – P268F

P268F Code - Cylinder 4 Injector Data Incompatible

Quick Answer

Each injector has a code stored in Electrically Erasable Programmable Read-Only Memory (EEPROM) that provides information to the Electronic Control Unit (ECU) about deviations of that injector from a theoretical average injector. 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: P268F indicates Cylinder 4 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 10,750

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
Comments
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Code P268F Description

Each injector has a code stored in Electrically Erasable Programmable Read-Only Memory (EEPROM) that provides information to the Electronic Control Unit (ECU) about deviations of that injector from a theoretical average injector. The Powertrain Control Module (PCM) sets the OBDII code if the injector code is missing or invalid.

OBDII Code P268F - Cylinder 4 Injector Data Incompatible - AutoCodes.com — P268F Code - Cylinder 4 Injector Data Incompatible

What does this mean?

What are the Possible Causes of the DTC P268F?

Program Injector

How to Fix the DTC P268F?

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 P268F 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 P268F code?

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Need Help with the Code?

Get the P268F code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P268F Buick — Cylinder 4 Injector Data Incompatible
P268F Cadillac — Cylinder 4 Injector Data Incompatible
P268F Chevrolet — Cylinder 4 Injector Data Incompatible
P268F Dodge — Cylinder 4 Injector Data Incompatible
P268F Ford — Cylinder 4 Injector Data Incompatible
P268F GMC — Cylinder 4 Injector Data Incompatible

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 P268F Code

No Frequently Asked Questions about P268F Code found.

Discuss the causes and fixes for P268F OBDII Code

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Cristian
Date: April 27, 2025 at 12:34 pm

Chevrolet Colorado 2016

Reply to Comment
- OBDIITech
  Date: April 28, 2025 at 12:52 pm
  Thanks for providing your vehicle information. On a 2016 Chevrolet Colorado, the P268F code Cylinder 4 Injector Data Incompatible usually points to a problem with the injector itself, the injector calibration data, or the engine control module (ECM).
  
  Each injector has unique calibration data that must be programmed into the ECM. If an injector was replaced and the new calibration wasn't updated in the computer, or if there’s a software issue or wiring problem, it can trigger this code.
  
  Here are a few common causes to check:
  - The injector for cylinder 4 may be faulty or incorrectly installed.
  - The wiring harness to cylinder 4’s injector might be damaged, loose, or corroded.
  - The calibration code for the injector might not have been programmed into the ECM correctly.
  - There could be a software update available for the ECM that addresses injector data issues.
  If the truck is running rough, misfiring, or you recently had injector work done, it’s a good idea to double-check the injector installation and programming. Otherwise, a proper diagnosis with a scan tool that can read injector calibration info will be needed.
  
  Hope this helps point you in the right direction!
  Reply to Comment