# P310B on the 2020 Bentley Bentayga

The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.

This code is specific to a manufacturer and is not described here.

## Bulletins for this model year that name P310B

- [11035388](https://open.wenmarpro.com/bulletins/11035388), 2026-07-31: Bentayga V8 Kovomo \- DTC P310B00 with Symptom Code 2638 \- Check Engine Lamp \- Fuel Pressure Regulation. Customer statement / workshop findings: Engine warning lamp is illuminated within the Driver Instrument Panel \(DIP\) in conjunction with the DTC as detailed below. • “P310B00 with symptom code 2638 \- Low Fuel Pressure Regulation” There may also be multiple DTC’s and symptoms present due to fuel pressure regulation or fuel supply issues in conjunction with the afore mentioned symptom/DTC
- [11029812](https://open.wenmarpro.com/bulletins/11029812), 2026-03-06: Bentayga V8 Kovomo \- DTC P310B00 with Symptom Code 2638 \- Check Engine Lamp \- Fuel Pressure Regulation. Customer statement / workshop findings: Engine warning lamp is illuminated within the Driver Instrument Panel \(DIP\) in conjunction with the DTC as detailed below: •“P310B00 with symptom code 2638 \- Low Fuel Pressure Regulation” There may also be multiple DTC’s and symptoms present due to fuel pressure regulation or fuel supply issues in conjunction with the afore mentioned symptom/DTC
- [11027112](https://open.wenmarpro.com/bulletins/11027112), 2026-01-06: Bentayga V8 Kovomo \- DTC P310B00 with Symptom Code 2638 \- Check Engine Lamp \- Fuel Pressure Regulation. Condition: Engine warning lamp is illuminated within the Driver Instrument Panel \(DIP\)
- [11015968](https://open.wenmarpro.com/bulletins/11015968), 2025-03-26: Bentayga V8 Kovomo \- DTC P310B00 with Symptom Code 2638 \- Check Engine Lamp \- Fuel Pressure Regulation.
- [10235744](https://open.wenmarpro.com/bulletins/10235744), 2023-05-05: Bentayga V8 Kovomo \- DTC P310B00 with Symptom Code 2638 \- Check Engine Lamp \- Fuel Pressure Regulation Customer Statement: \-Engine warning lamp is illuminated within the Driver Instrument Panel \(DIP\) in conjunction with the DTC as detailed below. \-P310B00 with symptom code 2638 \- Low Fuel Pressure Regulation
- [10232930](https://open.wenmarpro.com/bulletins/10232930), 2023-04-07: Bentayga V8 Kovomo \- DTC P310B00 with Symptom Code 2638 \- Check Engine Lamp \- Fuel Pressure Regulation Customer Statement: \-Engine warning lamp is illuminated within the Driver Instrument Panel \(DIP\) in conjunction with the DTC as detailed below: \-P310B00 with symptom code 2638 \- Low Fuel Pressure Regulation
- [10230836](https://open.wenmarpro.com/bulletins/10230836), 2023-02-02: Bentayga V8 Kovomo and V6 \(Hybrid\) \- Fuel Pressure Regulation \- Numerous DTCs Customer Statement: \-Check engine lamp illuminated within the Driver Instrument Panel \(DIP\) with one or multiple DTCs as detailed below: \-P310B00 with symptom code 2636 \- Low Fuel Pressure Regulation \-P014800 Fuel Deliver Error \-P019100 Fuel Rail Pressure Sensor \(A\) Circuit Range/Performance \-P018B00 Fuel Pressor Sensor \(B\) Circuit Range/Performance with Symptom Code 17871 \-Misfire DTCs
- [10226907](https://open.wenmarpro.com/bulletins/10226907), 2022-12-07: Bentayga V8 Kovomo \- DTC P310B00 with symptom code 2638 \- Check engine lamp \- Fuel pressure regulation Condition: Engine warning lamp is illuminated within the Driver Instrument Panel \(DIP\) in conjunction with the DTC as detailed below:
- [10224340](https://open.wenmarpro.com/bulletins/10224340), 2022-11-08: Bentayga V8 Kovomo \- DTCs P310B00 with symptom code 2638 \- Check Engine Lamp \- Fuel Pressure Regulation Customer Statement: \-Engine warning lamp is illuminated within the driver instrument panel \(DIP\) in conjunction with the DTC.
- [10222146](https://open.wenmarpro.com/bulletins/10222146), 2022-10-07: Bentayga V8 Kovomo and V6 \(Hybrid\) \- Fuel Pressure Regulation \- Numerous DTCs Customer Statement: \-Check Engine Lamp Illuminated within the Driver Instrument Panel \(DIP\): \-P310B00 with system code 2636 \- Low Fuel Pressure Regulation" Low Fuel Pressure Regulation" \-P014800 Fuel Deliver Error" \-P019100 Fuel Rail Pressure Sensor 'A' Circuit Range/Performance \-P018B00 Fuel Pressure Sensor "B" Circuit Range/Performance with symptom code 17871 \-Misfire" DTCs