P0190 on BMW: How to Diagnose & Fix
Fuel Rail Pressure Sensor Circuit Malfunction
1 BMW model · 1 documented issue · 1 critical · $600-$1,500 repair
P0190 on BMW by model: symptoms, diagnosis and fix
The B58 engine's high-pressure fuel pump can fail, though at lower rates than the older N54 engine. When the HPFP fails, fuel pressure drops below the minimum required for proper direct injection, causing long cranking, rough idle, misfires, and in severe cases, the engine stalling and entering limp mode. Failures are more common in cold weather when fuel demands are higher, and can be exacerbated by ethanol-blended fuels.
Common Symptoms
- Long cranking before engine starts, especially in cold weather
- Engine stalling at idle or low speed
- Check engine light with fuel pressure codes
- Noticeable loss of power during acceleration
- Rough idle and misfires
How to Fix
Replace the high-pressure fuel pump with the latest revised BMW part number. Verify the low-pressure fuel pump is providing adequate feed pressure. Use top-tier fuel and avoid running the tank below 1/4 to reduce strain on the fuel system. If under warranty, BMW will cover HPFP replacement.
What you need to fix it
Only diagnosis- and fitment-reviewed repair parts are linked here.
- Bosch B58 high-pressure fuel-pump kit 13518631642KTCross-refKIT-13518631642KT, 13518631642
Confirmed failed engine-driven high-pressure fuel-pump replacement. Fitment: 2020-2024 G20 M340i/M340i xDrive where FCP vehicle validation and VIN confirm BMW pump 13518631642; not the in-tank fuel-supply module..
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Sources for this issue (1)
P0190 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0190 mean on a BMW?
P0190 stands for "Fuel Rail Pressure Sensor Circuit Malfunction." P0190 indicates a malfunction in the fuel rail pressure sensor circuit. This sensor measures the pressure of fuel in the rail (common on direct-injection and high-pressure systems) and reports it to the PCM, which uses it to control the fuel pump and injectors for precise fueling. The code sets when the sensor's signal is out of range, erratic, or electrically faulty. Symptoms can include hard starting, stalling, hesitation, reduced power, or the engine going into a reduced-power fail-safe mode. On BMW it is documented across 1 model: M340i.
What are the most common causes of P0190?
The most common causes of P0190 are: Faulty fuel rail pressure sensor, Damaged wiring or connector at the sensor, Corroded or loose connector terminals, Open, short, or poor ground in the sensor circuit, Reference voltage problem from the PCM, Actual fuel pressure problems (pump/regulator) confusing the sensor, Failed PCM input (rare). The specific cause varies by vehicle.
How much does it cost to fix P0190 on a BMW?
Published repair estimates on BMW range from $600 to $1,500 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0190 on a different make?
View P0190 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.