AutoCodes – GMC – P1441 GMC

P1441 GMC Code - EVAP System Flow During Non-Purge Condition

Quick Answer

The Powertrain Control Module (PCM) monitors the amount of vacuum/pressure in the EVAP system by monitoring the fuel tank pressure sensor signal. Common causes include Faulty EVAP canister purge solenoid, Faulty Fuel Tank Pressure (FTP) sensor. 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: P1441 GMC indicates EVAP System Flow During Non-Purge Condition.
Common causes: Common causes include Faulty EVAP canister purge solenoid, Faulty Fuel Tank Pressure (FTP) sensor.
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 20,373

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 Aug 22, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1441 GMC Description

The Powertrain Control Module (PCM) monitors the amount of vacuum/pressure in the EVAP system by monitoring the fuel tank pressure sensor signal. The PCM seals the EVAP system by commanding the EVAP Purge Solenoid OFF and the EVAP vent valve ON. The PCM monitors the fuel tank pressure sensor in order to determine if the EVAP Purge Solenoid is leaking vacuum to the EVAP system.

OBDII Code P1441 GMC - EVAP System Flow During Non-Purge Condition - AutoCodes.com — P1441 GMC Code - EVAP System Flow During Non-Purge Condition

What does this mean?

What are the Possible Causes of the DTC P1441 GMC?

Faulty EVAP canister purge solenoid
Faulty Fuel Tank Pressure (FTP) sensor

How to Fix the DTC P1441 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1441 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 P1441 GMC 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.