VW Golf Hybrid Stalls: Fuel Rail Sensor Alert

Having experienced similar engine stalling symptoms in my 2020 VW Arteon eHybrid, I can relate to this fuel system concern. The flashing check engine light combined with power loss pointed to a faulty fuel rail pressure sensor in my case. The sensor signal was intermittently failing, causing the engine control unit to receive incorrect fuel pressure readings. This led to improper fuel delivery, resulting in both engine performance issues and stalling at idle. The repair required replacing the complete fuel rail pressure sensor assembly since the electrical connector had developed internal corrosion. This was a serious issue that needed immediate attention as continued driving could have caused further engine damage. Key indicators that matched your symptoms: Unusual engine stalling at idle, Significant power loss, Flashing check engine light, Sensor signal fluctuations The diesel engine management system in these hybrid powertrains is particularly sensitive to fuel pressure variations. Getting this diagnosed properly by a technician with hybrid system certification is crucial. I recommend having the fuel rail pressure checked with a professional diagnostic tool. This will confirm if the sensor is actually failing or if there might be a different underlying cause for the engine performance issues.

Thanks for sharing your experience with the Arteon. The symptoms you described match my Golf exactly. Just had my fuel injection system checked at a shop and they also found corrosion in the rail pressure sensor assembly. Quick question, do you recall roughly how much the repair cost in your case? Also wondering if youve had any similar issues pop up since getting it fixed? The check engine warnings havent returned for me yet but want to stay ahead of any potential problems.

Had the identical fuel rail pressure sensor issue fixed about 8 months ago. The repair cost came to 240€ for parts and labor, which seems standard for this type of sensor replacement. Since getting the faulty rail pressure sensor replaced, the engine performance has been perfect with no warning lights or stalling problems. The corrosion in these sensor assemblies is a known weak point in the fuel delivery system. The engine control unit now receives accurate pressure readings, which has completely resolved the power loss and stalling issues. Regular diagnostic checks show the fuel rail pressure stays consistently within spec. For preventive maintenance, keeping an eye on fuel system cleanliness and using quality fuel helps avoid similar sensor problems. The diesel engine in these hybrids runs much smoother when all pressure sensors are functioning correctly. The investment in fixing the defective pressure sensor was worth it for the reliable performance and peace of mind. Eight months of trouble-free operation suggests the repair shop did quality work addressing the root cause.

Had the repair done last week and wanted to close this thread with my experience. Found a certified hybrid specialist who diagnosed the exact same fuel rail pressure sensor issue. The total repair came to 290€, slightly more than expected but worth every cent for the quality work. The engine performance is completely restored now. No more stalling, full power is back, and the check engine light has stayed off. The mechanic walked me through the entire fuel injection system inspection and showed me the corroded sensor components they replaced. The shop used OEM parts and even gave me a detailed diagnostic readout showing the sensor signal values before and after the repair. Really impressed with how they handled everything, way better than my previous mechanic experiences. For anyone else facing similar engine stalling issues in their hybrid, definitely get the fuel pressure checked right away. Driving with a faulty sensor signal could have caused more expensive engine damage if left unfixed. Will update if any issues return, but so far the car runs like new again.