Engine-CodesBuick – P1673 Buick

P1673 Buick Code - EVAP Vent Solenoid Control Circuit Conditions

Quick Answer

The P1673 Buick code refers to an issue with the EVAP (Evaporative Emission Control System) Vent Solenoid Control Circuit. Common causes include Faulty EVAP vent solenoid, Damaged or corroded wiring in the vent solenoid circuit, Loose or disconnected electrical connector. 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
P1673 Buick indicates EVAP Vent Solenoid Control Circuit Conditions.
Common causes
Common causes include Faulty EVAP vent solenoid, Damaged or corroded wiring in the vent solenoid circuit, Loose or disconnected electrical connector.
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.
Table of contents Created and updated by William Orellana on Aug 30, 2024
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Code P1673 Buick Description

The P1673 Buick code refers to an issue with the EVAP (Evaporative Emission Control System) Vent Solenoid Control Circuit. The EVAP system is responsible for capturing and storing fuel vapors to prevent them from escaping into the atmosphere. The vent solenoid controls the flow of vapors from the fuel tank to the charcoal canister for storage. When this circuit is not functioning properly, it can lead to increased emissions, reduced fuel efficiency, and potential safety hazards.

OBDII Code P1673 Buick - EVAP Vent Solenoid Control Circuit Conditions
P1673 Buick Code - EVAP Vent Solenoid Control Circuit Conditions

Common Causes of P1673 Buick

  1. Faulty EVAP vent solenoid
  2. Damaged or corroded wiring in the vent solenoid circuit
  3. Loose or disconnected electrical connector
  4. Clogged charcoal canister
  5. Issues with the PCM (Powertrain Control Module) or ECM (Engine Control Module)

Symptoms of P1673 Buick

  1. Check Engine Light illuminated on the dashboard
  2. Strong fuel odor near the vehicle
  3. Difficulty starting the engine
  4. Decreased fuel efficiency
  5. Rough idling or stalling

How to Fix P1673 Buick

  1. Perform a diagnostic scan to confirm the P1673 code and pinpoint the exact cause of the issue.
  2. Inspect the EVAP vent solenoid and associated wiring for any signs of damage or corrosion.
  3. Test the electrical connectivity of the solenoid and repair or replace any faulty components.
  4. Check the charcoal canister for clogs or obstructions and clean or replace if necessary.
  5. Clear the trouble codes, reset the system, and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1673 Buick

The typical repair costs for addressing the P1673 code can range from $100 to $300, depending on the specific cause of the issue and the labor rates at the repair shop. Additional costs may be incurred if parts need to be replaced. It's important to consult with a certified mechanic to get an accurate estimate for your vehicle, as rates can vary based on location and other factors.

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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.

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