AutoCodes – Ford – P2691 Ford

P2691 Ford Code - Cylinder 6 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: P2691 Ford 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 3,825

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

What does this mean?

What are the Possible Causes of the DTC P2691 Ford?

Program Injector

How to Fix the DTC P2691 Ford?

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 Ford 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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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.