[SOLVED] P114D Code: Lean Fuel Trim – Fixing Post Catalyst Oxygen Sensor System

The automobile fault code P114D indicates a potential issue with the engine. When this code appears, the engine light or service engine soon warning light will turn on. The possible causes for this fault code include a leak in the exhaust system, a clogged catalytic converter, faulty pressure sensors on the intake, an open or shorted intake harness, poor electrical connection in the intake circuit, or a faulty fuel injector.

To fix this issue, it is recommended to visually inspect the wiring harness and connectors for any damage. Additionally, check for broken, bent, pushed out, or corroded connector pins.

The repair time for this issue is estimated to be around 1.0.

It is important to address this fault code promptly to prevent further damage to the engine.

Repair Importance Level10.0 (Out of 10)
Estimated Repair TimeApproximately 1.0 hour
Repair Difficulty Level10.0 (Out of 10)

When the engine light is on or the service engine soon warning light is illuminated, it could be a sign of the p114d fault code.

  • The symptoms of the automobile fault code p114d include the Engine Light being ON or the Service Engine Soon Warning Light being illuminated.

The automobile fault code p114d can be caused by a leak in the exhaust system, a clogged catalytic converter, faulty pressure sensors on the intake, an open or shorted pressure sensors on the intake harness, a poor electrical connection in the pressure sensors on the intake circuit, or a faulty fuel injector.

  • The fault code P114D can be caused by a leak in the exhaust system, a clogged catalytic converter, faulty pressure sensors on the intake, an open or shorted harness for the pressure sensors on the intake, a poor electrical connection in the pressure sensors on the intake circuit, or a faulty fuel injector.

To fix the automobile fault code p114d, start by visually inspecting the wiring harness, connectors, and components for any damage or corrosion.

  • To fix the automobile fault code p114d, start by checking the possible causes mentioned above.
  • Then, visually inspect the wiring harness and connectors related to the issue.
  • Look for any damaged components and check for broken, bent, pushed out, or corroded connector pins.
  • This fix is estimated to take approximately 1.0 hour.

The factors influencing the cost of diagnosing and fixing the automobile fault code p114d are the estimated repair time of 1.0 hour and the typical hourly rate charged by auto repair shops, which ranges between $75 and $150.

The P114D fault code is related to the lambda closed-loop mixture control in your vehicle. It indicates that the post catalyst fuel trim via oxygen sensor system is too lean in bank 2. This means that the fuel mixture in the exhaust after the catalytic converter is not within the factory specifications.

When this fault code is triggered, it means that the Engine Control Module (ECM) has detected a problem with the fuel trim in bank 2. The ECM monitors the lambda closed-loop mixture control to ensure that the fuel mixture is optimal for combustion. If the mixture is too lean, it can lead to poor engine performance and increased emissions.

To fix this issue, it is important to diagnose the root cause of the lean fuel trim in bank 2. Possible causes can include a faulty oxygen sensor, a vacuum leak, a clogged fuel injector, or a problem with the fuel pressure regulator. Once the cause is identified, the necessary repairs or replacements can be made to bring the fuel trim back to factory specifications.

What are the possible causes of the automobile fault code p114d that could trigger the engine light to turn on?

If you see the engine light on or the service engine soon warning light, the fault code P114D could be the culprit. This code can be triggered by various causes, including a leak in the exhaust system, a clogged catalytic converter, faulty pressure sensors on the intake, an open or shorted intake harness, poor electrical connection in the intake circuit, or a faulty fuel injector. To fix this issue, start by checking the possible causes mentioned above. Take a close look at the wiring harness and connectors, inspect for any damage, and check for broken, bent, pushed out, or corroded pins in the connectors.

How can I visually inspect the wiring harness and connectors to identify any potential issues related to the fault code p114d?

If you’re dealing with the fault code p114d and your engine light is on, it’s time to visually inspect the wiring harness and connectors. This could be caused by a leak in the exhaust system, a clogged catalytic converter, faulty pressure sensors on the intake, an open or shorted intake harness, poor electrical connection in the intake circuit, or a faulty fuel injector. To fix it, check the possible causes mentioned earlier and carefully inspect the wiring harness and connectors for any damage or corrosion. Look out for broken, bent, pushed out, or corroded pins on the connectors.

What steps should I take to fix the fault code p114d and resolve the engine light being on?

To fix the fault code p114d and resolve the engine light being on, start by checking the possible causes: a leak in the exhaust system, a clogged catalytic converter, faulty pressure sensors on the intake, an open or shorted intake harness, poor electrical connection in the intake circuit, or a faulty fuel injector. Visually inspect the wiring harness and connectors for any damage, and look for broken, bent, pushed out, or corroded pins on the connectors.

p114d error fault code explained

If you’re seeing the Engine Light ON or the Service Engine Soon Warning Light, it could be due to a leak in the exhaust system, a clogged catalytic converter, faulty pressure sensors on the intake, an open or shorted intake harness, or a faulty fuel injector. To fix this, visually inspect the wiring harness and connectors, check for damaged components, and look for any broken, bent, pushed out, or corroded connector pins.

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