BMW DTC P117D – Fuel Rail Pressure Sensor Pressure High before Enginge Start (Bank 2)
DTC P117D meaning on BMW
DTC P117D on a BMW indicates that the Fuel Rail Pressure Sensor Pressure is reading high before the engine is started. This code specifically relates to Bank 2 of the engine.
BMW DTC P117D symptoms
Symptoms of DTC P117D on a BMW may include:
- Check Engine Light illuminated
- Reduced engine performance
- Engine stalling or rough idling
- Decreased fuel efficiency
BMW DTC P117D causes
Common causes of DTC P117D on a BMW include:
- Faulty fuel rail pressure sensor
- Issues with the fuel pressure regulator
- Leaks in the fuel system
- Electrical wiring or connector problems
BMW DTC P117D seriousness
DTC P117D should not be ignored as it can lead to poor engine performance and potential drivability issues. It is recommended to address this code promptly to prevent further damage to the vehicle.
How to diagnose DTC P117D on BMW
To diagnose DTC P117D on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the fuel rail pressure sensor and its wiring for any visible damage
- Check the fuel pressure regulator for proper operation
- Perform a fuel pressure test to ensure the system is functioning correctly
How to fix DTC P117D on BMW
To fix DTC P117D on a BMW, you may need to:
- Replace the faulty fuel rail pressure sensor
- Repair any wiring or connector issues related to the sensor
- Address any fuel system leaks or pressure regulator problems
- Clear the fault codes and reset the Check Engine Light
How to erase DTC P117D on BMW
To erase DTC P117D on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the vehicle’s ECU. Once the codes are cleared, the Check Engine Light should turn off. It is important to ensure that the underlying issue causing the fault code has been addressed before clearing the code.
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
Some of the links on this page may be affiliate links, which means we may earn a small commission if you make a purchase. This helps us keep our DTC database up to date and provide valuable content for free. We only recommend products that we have tested and believe to be the best in their class.