AutoCodes – Generic – P114D

P114D Code - Post Catalyst Fuel Trim Via Oxygen Sensor System Too Lean Bank 2

Quick Answer

The diagnostic function monitors the lambda closed-loop mixture control. Common causes include Leak in exhaust system, Catalytic converter clogged, Faulty Pressure Sensors on Intake. 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: P114D indicates Post Catalyst Fuel Trim Via Oxygen Sensor System Too Lean Bank 2.
Common causes: Common causes include Leak in exhaust system, Catalytic converter clogged, Faulty Pressure Sensors on Intake.
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.

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Code Popularity 26,611

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jul 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P114D Description

The diagnostic function monitors the lambda closed-loop mixture control. The Engine Control Module (ECM) sets the OBDII code when the lambda closed-loop mixture is not to factory specifications.

OBDII Code P114D - Post Catalyst Fuel Trim Via Oxygen Sensor System Too Lean Bank 2 - AutoCodes.com — P114D Code - Post Catalyst Fuel Trim Via Oxygen Sensor System Too Lean Bank 2

What does this mean?

What are the Possible Causes of the DTC P114D?

Leak in exhaust system
Catalytic converter clogged
Faulty Pressure Sensors on Intake
Pressure Sensors on Intake harness is open or shorted
Pressure Sensors on Intake circuit poor electrical connection
Faulty Fuel injector

How to Fix the DTC P114D?

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 P114D 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.

Need more information about the P114D code?

Need more information on how to fix the P114D code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P114D code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P114D BMW — Post Catalyst Fuel Trim Via Oxygen Sensor System Too Lean Bank 2
P114D MINI — Post Catalyst Fuel Trim Via Oxygen Sensor System Too Lean Bank 2

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 P114D Code

1. What does OBDII code P114D mean?

P114D indicates that the post-catalyst oxygen sensor system on Bank 2 has detected a fuel mixture that is too lean (too much air and not enough fuel).

2. What are the symptoms of code P114D?

Common symptoms include poor engine performance, reduced fuel efficiency, potential engine misfires, and an illuminated check engine light.

3. What causes the P114D code to appear?

Possible causes include a faulty post-catalyst oxygen sensor, exhaust leaks, intake air leaks, fuel delivery issues, or a malfunctioning catalytic converter.

4. Can a dirty or failing oxygen sensor trigger P114D?

Yes, a dirty or failing post-catalyst oxygen sensor on Bank 2 can give incorrect readings, leading to this code.

5. How do you diagnose the P114D code?

Diagnosis typically involves scanning for related codes, inspecting the oxygen sensors and wiring, checking for exhaust or intake leaks, and analyzing live data with a scan tool.

6. What repairs can fix the P114D code?

Repairs may include replacing the faulty oxygen sensor, repairing exhaust or intake leaks, addressing fuel system issues, or replacing the catalytic converter if it's damaged.

7. Can an exhaust leak cause P114D?

Yes, an exhaust leak near the Bank 2 oxygen sensor can allow extra oxygen into the system, causing the sensor to misread the air-fuel mixture.

8. Is it safe to drive with the P114D code?

While the vehicle may still run, driving with this code for an extended period can lead to further engine damage, decreased performance, and higher emissions.

9. How much does it cost to fix the P114D code?

Repair costs vary depending on the issue but typically range from $100-$300 for oxygen sensor replacement and more if the catalytic converter or other components require repair.

10. Can a software update resolve the P114D code?

In some cases, an ECU software update from the manufacturer might resolve false readings, but this is less common than physical repairs.