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P1250 Buick Code - Early Fuel Evaporation Heater Circuit

Quick Answer

The P1250 Buick code refers to an issue with the Early Fuel Evaporation (EFE) heater circuit in the vehicle. Common causes include Faulty EFE heater, Electrical faults in the circuit, Damaged wiring. 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
P1250 Buick indicates Early Fuel Evaporation Heater Circuit.
Common causes
Common causes include Faulty EFE heater, Electrical faults in the circuit, Damaged wiring.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P1250 Buick Description

The P1250 Buick code refers to an issue with the Early Fuel Evaporation (EFE) heater circuit in the vehicle. The EFE system is designed to heat the fuel in the carburetor to improve cold-start performance and reduce emissions during warm-up. When this circuit malfunctions, it can lead to various problems affecting the vehicle's performance.

OBDII Code P1250 Buick - Early Fuel Evaporation Heater Circuit
P1250 Buick Code - Early Fuel Evaporation Heater Circuit

Common Causes of P1250 Buick

  1. Faulty EFE heater
  2. Electrical faults in the circuit
  3. Damaged wiring
  4. ECM malfunction
  5. Corrosion or poor connections in the circuit

Symptoms of P1250 Buick

  1. Difficulty starting the engine, especially in cold weather
  2. Rough idling or stalling
  3. Decreased fuel efficiency
  4. Check engine light illuminated
  5. Increased emissions

How to Fix P1250 Buick

  1. Perform a thorough inspection of the EFE heater circuit and wiring for any visible damage or corrosion.
  2. Test the EFE heater for proper functionality using a multimeter.
  3. Check the ECM for any fault codes related to the EFE system.
  4. Replace any damaged wiring or components in the EFE heater circuit.
  5. Clear the fault code and test the vehicle to ensure the issue has been resolved.

Cost to Fix P1250 Buick

The typical repair costs for addressing the P1250 Buick code can vary depending on the extent of the issue and the specific components that need to be replaced. On average, the repair for this code could range from $150 to $400, including parts and labor. However, it's important to note that diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check with local auto repair shops for a more accurate estimate.

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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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