P1117 BMW Code - Mass Or Volume Air Flow Circuit Low Input Bank 2
Quick Answer
P1117 BMW indicates Mass Or Volume Air Flow Circuit Low Input Bank 2. Common causes include Faulty Mass Air Flow Sensor, Mass Air Flow Sensor harness is open or shorted, Mass Air Flow Sensor electrical circuit poor connection. 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 BMW indicates Mass Or Volume Air Flow Circuit Low Input Bank 2.
- Common causes
- Common causes include Faulty Mass Air Flow Sensor, Mass Air Flow Sensor harness is open or shorted, Mass Air Flow Sensor electrical circuit poor connection.
- 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.
Code P1117 BMW Description
What are the Possible Causes of the DTC P1117 BMW?
- Faulty Mass Air Flow Sensor
- Mass Air Flow Sensor harness is open or shorted
- Mass Air Flow Sensor electrical circuit poor connection
How to Fix the DTC P1117 BMW?
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 P1117 BMW 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.
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Frequently Asked Questions about P1117 BMW Code
What does OBDII code P1117 mean for a BMW?
Code P1117 indicates a "Mass or Volume Air Flow Circuit Low Input Bank 2," meaning the mass air flow sensor for Bank 2 is detecting an abnormally low voltage signal.
What are the common symptoms of P1117 in a BMW?
Symptoms may include poor engine performance, rough idling, stalling, decreased fuel efficiency, and an illuminated Check Engine Light.
What causes code P1117 to appear on a BMW?
Possible causes include a faulty mass air flow (MAF) sensor, damaged wiring or connectors, intake air leaks, or a clogged air filter.
Can a dirty air filter trigger P1117 on a BMW?
Yes, a clogged or dirty air filter can restrict airflow and cause the MAF sensor to report low input voltage, leading to this code.
How do I diagnose code P1117 on a BMW?
Start by inspecting the MAF sensor, wiring, and connectors for damage. Check the air filter and look for intake leaks. You may also need a multimeter or scan tool to measure the sensor’s voltage output.
Is it safe to drive with a P1117 code on a BMW?
Driving with this code may lead to reduced engine performance and fuel efficiency. It’s best to address the issue promptly to prevent further damage.
Can a faulty mass air flow sensor cause P1117?
Yes, a failing or damaged MAF sensor can result in low input voltage readings, triggering the P1117 code.
How do I fix OBDII code P1117 on a BMW?
Repairs may involve cleaning or replacing the MAF sensor, repairing damaged wiring, replacing the air filter, or fixing intake manifold leaks.
How much does it cost to repair code P1117 on a BMW?
Repair costs vary depending on the issue. Replacing a MAF sensor typically costs $150–$400, while fixing wiring or leaks may cost less.
Should I reset the code after fixing the issue?
Yes, after completing repairs, use an OBDII scan tool to clear the code and confirm the issue is resolved.
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