AutoCodes – Generic – P2623

P2623 Code - Injector Control Pressure Regulator Circuit/Open

Quick Answer

The Powertrain Control Module (PCM) monitors the Injector Control Pressure Regulator (ICPR) Circuit. Common causes include Faulty Injector Control Pressure Regulator, Injector Control Pressure Regulator harness is open or shorted, Injector Control Pressure Regulator circuit poor electrical connection. 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: P2623 indicates Injector Control Pressure Regulator Circuit/Open.
Common causes: Common causes include Faulty Injector Control Pressure Regulator, Injector Control Pressure Regulator harness is open or shorted, Injector Control Pressure Regulator circuit poor electrical connection.
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 26,097

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 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P2623 Description

The Powertrain Control Module (PCM) monitors the Injector Control Pressure Regulator (ICPR) Circuit. The PCM sets the OBDII code when the Injector Control Pressure Regulator circuit is out of factory specifications.

OBDII Code P2623 - Injector Control Pressure Regulator Circuit/Open - AutoCodes.com — P2623 Code - Injector Control Pressure Regulator Circuit/Open

What does this mean?

What are the Possible Causes of the DTC P2623?

Faulty Injector Control Pressure Regulator
Injector Control Pressure Regulator harness is open or shorted
Injector Control Pressure Regulator circuit poor electrical connection

How to Fix the DTC P2623?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2623 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 P2623 code?

Need more information on how to fix the P2623 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P2623 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P2623 Chevrolet — Injector Control Pressure Regulator Circuit/Open
P2623 Dodge — Injector Control Pressure Regulator Circuit/Open
P2623 Ford — Injector Control Pressure Regulator Circuit/Open
P2623 GMC — Injector Control Pressure Regulator Circuit/Open

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.