VW Scirocco Stalling: Faulty Fuel Rail Sensor Fix

As someone with moderate experience working on VWs, I dealt with nearly identical symptoms on my 2013 VW Golf GTI TSI. The constant check engine light and power loss while driving pointed directly to a faulty fuel rail pressure sensor. After the engine started stalling regularly at idle, I took it to a specialized workshop. The diagnostic scan confirmed inconsistent fuel pressure readings. The mechanic explained that when the sensor fails, the engine control unit receives incorrect data about fuel rail pressure, causing engine stalling and reduced power as a safety measure. The repair was straightforward, they replaced the pressure sensor and cleared the fault codes. Total cost was 240€ including diagnostics and labor. Since the fix, the engine runs perfectly with no more stalling or power issues. To help diagnose your case more accurately, could you share: Current mileage on your Scirocco, Are there any other warning lights besides check engine, Does the stalling happen more frequently in specific conditions, Have you had any recent fuel system repairs The fuel injection system is quite similar between the Scirocco and Golf, so the repair process should be comparable if you have the same issue.

Thanks for the detailed insight. My Scirocco has 127564km on the clock with the last service done just 2 months ago. No other warning lights besides the check engine light. The stalling occurs more frequently when the engine is warm, especially after short stops at traffic lights. The sensor signal issue seems to match exactly what you experienced. Good to know the fuel pressure sensor replacement fixed it completely in your case. A 240€ repair bill sounds reasonable compared to what I feared it might cost. No recent fuel system work has been done on my car. I will get it checked at a workshop this week since the symptoms match so closely with your experience. Better to address it quickly before it potentially causes more serious fuel injection problems.

Thanks for the update on your Scirocco. The symptoms you describe, especially the warm engine stalling at traffic lights, are exactly what I experienced with my Golf GTI before the repair. The consistent check engine light combined with these specific running issues really points to the rail pressure sensor. Looking at your mileage, its actually quite close to when mine failed at 130000km. The fact that your stalling gets worse with engine temperature matches the classic behavior of a failing fuel rail sensor signal. The sensor starts sending erratic readings to the ECU as components heat up. Since you mentioned no previous fuel system work, this is likely the original sensor, which makes sense timing-wise for it to start failing. One tip from my experience, when you take it in, ask them to check the fuel rail pressure while running a diagnostic scan. This helped confirm the issue in my case. The 240€ I paid included a full system check too, so you should expect similar costs. The repair resolved all symptoms permanently, no more stalling, proper power delivery, and the check engine light stayed off. With such similar symptoms between our cars, I am quite confident you are dealing with the same issue.

Thanks for all the details about your GTI experience. This really helps confirm my suspicions about the fuel pressure sensor being the culprit. Based on your repair experience and costs, I feel much more confident about getting this fixed. Since my Scirocco is showing identical engine performance issues, the warm stalling, constant check engine light, and reduced power, I will definitely mention checking the fuel rail sensor signal when I take it in. Good point about having them verify the actual pressure readings during diagnostics. The timing makes perfect sense too, as my car has similar mileage to when yours had issues. I appreciate knowing the fix was straightforward and completely resolved the problems. Will schedule the repair this week before the fuel injection system potentially develops more serious issues from running with faulty sensor readings. I will update the thread once I get the repair done in case other VW owners experience similar symptoms. For now, at least I can go to the workshop knowing what to expect both for the repair process and costs.