Unusual symptoms in a 2017 Opel Crossland: black smoke, irregular engine running and more

Hello, I had a similar problem with my Opel Astra from 2014. The symptoms were almost the same - black smoke, uneven engine running, jerky acceleration and the engine light was also permanently illuminated. I'm not a professional either, but in my case the problem was with the boost pressure regulator, which was electrically defective. This was definitely a serious problem when you consider that it affected the overall driving comfort, performance and engine behavior. Furthermore, in my case, the boost pressure control was already so broken that the engine would even stall at idle, which can be quite dangerous. Fortunately, my garage was able to fix the problem quickly. They had to completely replace the boost pressure regulator and then recalibrate everything. So yes, it sounds like your car has a similar problem and you should take it to the garage as soon as possible. It's always better to take care of problems like this before they get any more serious. I hope I was able to help you. Regards, [your name]

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Hello, thank you for your detailed reply! That sounds like it's probably also the boost pressure regulator in my Crossland. It's good that your garage was able to fix the problem so quickly - I hope it works the same for me. May I ask how much the whole procedure cost? And were there any other problems afterwards or was everything OK afterwards? Many thanks in advance and best regards, [your name]

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Hi there, I'm glad if I could help! So, in my case, the price for repairing the electrically defective boost pressure actuator was €1520. It's a bit expensive, I admit, but I haven't had any problems since the repair. Everything runs perfectly! And yes, I also suspected the position sensor of the boost pressure control, but that turned out to be a fault. The mechanic dealt with it straight away and since then this problem has also been solved. Good luck with your Crossland. Just get it to the workshop quickly so that it runs smoothly again soon! Best regards, [your name]

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Hello, thank you very much for your helpful information! I'll plan a thick blanket for my wallet when I go to the garage. But if the problem is fixed afterwards and my car runs smoothly again, then the price will be worth it. Your experience report really helped me a lot and eased my worries a little. So I'll drive to the garage tomorrow and hand my car in there. I'll let you know how it goes. Thanks again and best regards, [your name]

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Good day, I have a 2010 Opel Corsa diesel. When I read out the car, I get the error code P001A. If I push it hard above 120 km/h, I get another code: P0299. I’ve checked the turbo vanes, and there’s no play. I’ve also checked the vacuum hoses, and they’re all in good condition. I removed and checked the N75 valve — it held vacuum and was completely clean. If I clear the error codes and start the car or drive around, the P003A error code comes back immediately. And when I go full throttle on the highway above 110 km/h, the P0299 code also appears. Does anyone know what could be causing this problem?

The P001A code typically relates to the camshaft position timing, while P0299 indicates an underboost condition. Since you've already checked the turbo vanes, vacuum hoses, and N75 valve, I recommend inspecting the camshaft position sensor and its wiring for any faults or loose connections. A faulty sensor can affect engine timing and performance. If the issue persists, it might be worth checking the turbocharger wastegate actuator for proper operation, as it can also cause underboost issues. Let me know how it goes or if you have further questions!