BMW DTC P2414 – O2 Sensor Exhaust Sample Error (Bank 1 Sensor 1)
DTC P2414 meaning on BMW
DTC P2414 on a BMW indicates an O2 Sensor Exhaust Sample Error for Bank 1 Sensor 1. This fault code is triggered when the engine control module (ECM) detects that the oxygen sensor located in the exhaust stream before the catalytic converter is not providing accurate readings or is malfunctioning.
BMW DTC P2414 symptoms
Symptoms of DTC P2414 on a BMW may include poor fuel economy, rough idling, hesitation during acceleration, and an illuminated check engine light on the dashboard.
BMW DTC P2414 causes
The common causes of DTC P2414 on a BMW include a faulty oxygen sensor, wiring issues in the sensor circuit, exhaust leaks, or a malfunctioning ECM.
BMW DTC P2414 seriousness
While DTC P2414 may not cause immediate drivability issues, it can lead to decreased fuel efficiency and increased emissions. Ignoring this fault code can potentially cause damage to the catalytic converter over time.
How to diagnose DTC P2414 on BMW
To diagnose DTC P2414 on a BMW, start by using a diagnostic scanner to retrieve the fault code. Then, inspect the wiring and connectors related to Bank 1 Sensor 1 oxygen sensor for any damage or corrosion. Perform a visual inspection of the sensor itself and check for any signs of physical damage. Additionally, using a multimeter, test the sensor’s voltage output to ensure it is within the specified range.
How to fix DTC P2414 on BMW
To fix DTC P2414 on a BMW, start by replacing the Bank 1 Sensor 1 oxygen sensor if it is found to be faulty. Ensure that the new sensor is compatible with your BMW model. Check and repair any damaged wiring or connectors in the sensor circuit. Clear the fault code using a diagnostic scanner after completing the repairs.
How to erase DTC P2414 on BMW
To erase DTC P2414 on a BMW, use a diagnostic scanner to access the ECM and navigate to the fault code menu. Select the option to clear the fault codes, and confirm the action. Once the DTC P2414 has been successfully erased, start the vehicle and ensure that the check engine light does not reappear.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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