Crafter Diesel Stalling: Bad Fuel Pressure Sensor Alert

These symptoms strongly align with fuel pressure sensor issues, which I encountered on my 2009 VW Transporter TDI. The rough idle, engine stalling, and jerking during acceleration are classic signs of fuel delivery problems. The fuel pressure sensor regulates optimal fuel flow to the engine. When it fails, the engine control unit receives incorrect readings, leading to poor fuel economy and unstable performance. My vehicle showed identical symptoms, especially the rough idle and stalling at stops. The repair required replacing the entire fuel pressure sensor unit since the connector pins were corroded. The job involved accessing the fuel rail and careful handling of fuel system components. This was a serious repair that needed proper diagnostic equipment and expertise working with diesel injection systems. A faulty sensor can damage other fuel system components if left unfixed. The stalling and misfires will likely worsen over time. Based on the age and mileage of your Crafter, this diagnosis aligns with typical wear patterns of these sensors. Getting a second opinion from a workshop specializing in VW diesel engines would be worthwhile given your concerns. The repair should include testing the entire fuel delivery system to ensure no related components are compromised.

Thanks for sharing those details about the fuel pressure sensor repair. Dealing with similar issues on my Crafter now. The fuel injector problems got sorted out, but it took a while to get the right diagnosis. Good to hear someone else confirm these symptoms, especially the engine stalling and rough running. Quick question, do you remember roughly what you paid for the repair? Also wondering if you had any other issues pop up afterward? My check engine light keeps coming on intermittently even after some initial fixes, so trying to gauge if I should expect more problems.

I ended up getting the fuel pressure sensor fixed last week, and thankfully the repair was simpler than expected at 95€ for a faulty cable connection. The mechanic found the sensor itself was actually fine, just a bad connector causing erratic readings to the engine control unit. Since the repair, the engine stalling and rough idle issues have completely disappeared. The check engine light hasnt returned either, which was a relief since intermittent warnings can be really frustrating to diagnose. My earlier experience with the fuel system problems on my Transporter taught me that sensor issues often start with minor symptoms that get worse if ignored. Getting the connection fixed early likely prevented damage to other components. One thing to note about your intermittent check engine light, while my sensor connection issue got resolved, recurring warnings could indicate other fuel delivery problems that need checking. A proper diagnostic scan might reveal if there are any remaining pressure or flow issues in the system.

Thanks for the input. Finally got my Crafter sorted after dealing with these fuel system headaches. Took it to a different mechanic who specializes in diesel engines, turned out to be a good call. The repair cost came to 280€ total. They found the fuel pressure sensor was actually fine, but discovered a failing fuel pump that was causing the engine misfire issues. This explained why the check engine light kept coming back after the initial fixes. The replacement took about 4 hours. Since the repair, the engine runs smooth with no more stalling or jerky acceleration. Fuel economy has improved noticeably too. Big relief after weeks of unpredictable performance. Main lesson learned: getting a specialist diagnosis was worth it, even if it meant paying a bit more. Those initial symptoms, rough idle and stalling, turned out to be classic signs of a fuel pump problem rather than just a sensor issue.