Engine-CodesMINI – P1117 MINI

P1117 MINI Code - Mass Or Volume Air Flow Circuit Low Input Bank 2

Quick Answer

The P1117 MINI diagnostic trouble code indicates a low input in the mass or volume airflow circuit on Bank 2 of the engine. Common causes include Faulty MAF sensor, Vacuum leak in the intake system, Clogged air filter. 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
P1117 MINI indicates Mass Or Volume Air Flow Circuit Low Input Bank 2.
Common causes
Common causes include Faulty MAF sensor, Vacuum leak in the intake system, Clogged air filter.
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 Sep 10, 2024
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Code P1117 MINI Description

The P1117 MINI diagnostic trouble code indicates a low input in the mass or volume airflow circuit on Bank 2 of the engine. This code is typically seen in vehicles with multiple banks of cylinders, where Bank 2 refers to the set of cylinders not containing cylinder number one. The mass airflow sensor (MAF) is responsible for measuring the amount of air entering the engine, which is crucial for determining the correct air-fuel mixture for combustion. When the MAF sensor detects a lower than expected airflow on Bank 2, it triggers the P1117 code.

OBDII Code P1117 MINI - Mass Or Volume Air Flow Circuit Low Input Bank 2
P1117 MINI Code - Mass Or Volume Air Flow Circuit Low Input Bank 2

Common Causes of P1117 MINI

  1. Faulty MAF sensor
  2. Vacuum leak in the intake system
  3. Clogged air filter
  4. Wiring or connectivity issues in the MAF sensor circuit
  5. Dirty or contaminated MAF sensor

Symptoms of P1117 MINI

  1. Decreased fuel efficiency
  2. Rough idling or stalling
  3. Hesitation or lack of power during acceleration
  4. Check Engine Light illuminated
  5. Increased emissions

How to Fix P1117 MINI

  1. Begin by visually inspecting the intake system and air filter for any signs of damage or contamination. Replace the air filter if necessary.
  2. Use a scan tool to monitor the MAF sensor's data and check for any irregular readings. If the sensor is faulty, replace it with a new one.
  3. Inspect the intake system for any vacuum leaks and repair or replace any damaged hoses or fittings.
  4. Check the wiring and connectors in the MAF sensor circuit for any corrosion or damage. Repair or replace as needed.
  5. Clear the trouble code from the vehicle's computer using a scan tool and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P1117 MINI

The cost of repairing a P1117 MINI code can vary depending on the specific cause of the issue and the required parts and labor. In general, the cost of replacing a MAF sensor can range from $100 to $400, including parts and labor. Repairing a vacuum leak or replacing an air filter may cost an additional $50 to $200, depending on the extent of the damage. Diagnostic time and labor rates at auto repair shops can vary, so it's advisable to check with local 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.

Frequently Asked Questions about P1117 MINI Code

What does the OBDII code P1117 mean on a MINI?

P1117 on a MINI indicates a "Mass or Volume Air Flow Circuit Low Input Bank 2," meaning the mass air flow (MAF) sensor for Bank 2 is reporting a voltage signal lower than expected.

What are the common symptoms of code P1117 on a MINI?

Symptoms may include poor engine performance, rough idling, decreased fuel efficiency, hesitation during acceleration, or the illumination of the check engine light.

What causes the P1117 code to trigger on a MINI?

Common causes include a faulty MAF sensor, wiring issues such as shorts or open circuits, a dirty or clogged air filter, air intake leaks, or a faulty engine control module (ECM).

Can a dirty air filter cause the P1117 code on a MINI?

Yes, a dirty or clogged air filter can restrict airflow to the MAF sensor, leading to a low voltage signal and triggering the P1117 code.

How do you diagnose the P1117 code on a MINI?

Start by inspecting the MAF sensor and its wiring for damage, check for air intake leaks, ensure the air filter is clean, and use a scan tool to monitor live data from the MAF sensor to confirm low voltage readings.

Can you drive with the P1117 code on a MINI?

Driving with this code is not recommended, as it can cause poor engine performance, increased emissions, and potentially lead to further damage if the issue is not addressed.

How do you fix the P1117 code on a MINI?

Repairs may include cleaning or replacing the MAF sensor, fixing damaged wiring or connectors, replacing the air filter, repairing air intake leaks, or reprogramming or replacing the ECM if necessary.

Is replacing the MAF sensor always required for the P1117 code?

No, the MAF sensor may not always need replacement. The issue could be related to wiring problems, air intake leaks, or other components in the system.

How much does it cost to fix the P1117 code on a MINI?

The repair cost varies depending on the issue. Replacing a MAF sensor typically costs between $200 and $400, while fixing wiring or leaks may be less expensive.

Can a vacuum leak cause the P1117 code on a MINI?

Yes, a vacuum leak in the intake system can disrupt the airflow readings and trigger the P1117 code.

Discuss the causes and fixes for P1117 MINI OBDII Code

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