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Engine-Codes – MINI – P1449 MINI

P1449 MINI Code - Diagnostic Module Tank Leakage Pump Too High

Quick Answer

The P1449 MINI code refers to the Diagnostic Module Tank Leakage Pump Too High. Common causes include Faulty tank leakage pump, Leaking or damaged fuel lines, Clogged charcoal canister. 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
P1449 MINI indicates Diagnostic Module Tank Leakage Pump Too High.
Common causes
Common causes include Faulty tank leakage pump, Leaking or damaged fuel lines, Clogged charcoal canister.
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 10, 2024
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Code P1449 MINI Description

The P1449 MINI code refers to the Diagnostic Module Tank Leakage Pump Too High. This code indicates that there is an issue with the tank leakage pump in the vehicle's evaporative emissions control system. The evaporative emissions system is responsible for capturing and storing fuel vapors to prevent them from escaping into the atmosphere. The tank leakage pump plays a crucial role in maintaining the proper pressure in the fuel tank and ensuring that no fuel vapors are leaking out.

OBDII Code P1449 MINI - Diagnostic Module Tank Leakage Pump Too High
P1449 MINI Code - Diagnostic Module Tank Leakage Pump Too High

Common Causes of P1449 MINI

  1. Faulty tank leakage pump
  2. Leaking or damaged fuel lines
  3. Clogged charcoal canister
  4. Loose or damaged gas cap
  5. Wiring or electrical issues

Symptoms of P1449 MINI

  1. Check engine light illuminated on the dashboard
  2. Failed emissions test
  3. Strong fuel odor near the vehicle
  4. Decreased fuel efficiency
  5. Rough idle or stalling

How to Fix P1449 MINI

  1. Diagnose the issue using a scan tool to confirm the P1449 code and identify the specific problem with the tank leakage pump.
  2. Inspect the tank leakage pump, fuel lines, charcoal canister, gas cap, and wiring for any signs of damage or leaks.
  3. Replace the faulty tank leakage pump and any damaged components that are contributing to the issue.
  4. Clear the diagnostic trouble codes from the vehicle's computer and test drive the vehicle to ensure that the problem has been resolved.
  5. Perform an emissions test to verify that the vehicle is now in compliance with regulations.

Cost to Fix P1449 MINI

The typical repair costs for addressing the P1449 MINI code can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the repair for this code can range from $200 to $500, including parts and labor. However, it is important to note that the actual cost may be higher or lower based on the location of the repair shop, the make and model of the vehicle, and the extent of the damage. It is recommended to obtain a detailed quote from a qualified mechanic to get an accurate estimate for the repair.

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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.

Frequently Asked Questions about P1449 MINI Code

1. What does the OBDII code P1449 mean on a MINI?

P1449 indicates an issue with the Diagnostic Module Tank Leakage (DMTL) pump, specifically that its pressure is too high, signaling a potential problem in the evaporative emissions system.

2. What are the common symptoms of code P1449 in a MINI?

Typical symptoms include the check engine light turning on, potential fuel smell from the vehicle, and, in some cases, reduced fuel efficiency.

3. What causes the P1449 code to appear on a MINI?

Common causes include a faulty DMTL pump, clogged or damaged vent lines, a malfunctioning vent valve, or a wiring issue in the pump circuit.

4. Is it safe to drive with a P1449 code on a MINI?

While the vehicle may still be drivable, ignoring the code can lead to increased emissions and potential damage to the EVAP system. It's best to address the issue promptly.

5. How do you diagnose the P1449 code on a MINI?

Diagnosis involves scanning the vehicle with an OBDII tool, inspecting the DMTL pump, checking for clogged or damaged hoses, and testing the pump's electrical connections.

6. Can a loose gas cap trigger the P1449 code on a MINI?

While a loose or faulty gas cap can cause some EVAP-related codes, P1449 specifically points to an issue with the DMTL pump and is unlikely to be caused by the gas cap.

7. How can the P1449 code on a MINI be fixed?

Repairs may include replacing the DMTL pump, cleaning or replacing vent lines, repairing faulty wiring, or replacing a damaged vent valve.

8. How much does it cost to fix the P1449 code on a MINI?

The cost varies depending on the cause but typically ranges from $150 to $500, with DMTL pump replacement being one of the more expensive repairs.

9. Can the P1449 code clear itself on a MINI?

The code may temporarily clear if the issue is intermittent, but it will likely return until the underlying problem is resolved.

10. Does the P1449 code affect emissions testing?

Yes, a P1449 code indicates an EVAP system issue, which can cause the vehicle to fail an emissions test.

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