KaiserMark
Opel Mokka with 186,591 km: Smoke, check engine light and unusual fuel consumption
(Translated from German)
Summary of the thread
An Opel Mokka with 186,591 km is experiencing issues such as black smoke during acceleration, a persistent check engine light, engine stalling, loss of power, jerking, high fuel consumption, and a bad exhaust smell. The suspected cause is a faulty rail pressure sensor. A similar issue was resolved in an Opel Astra by replacing the sensor, which improved performance and eliminated the problems. It is advised to consult a mechanic promptly to prevent further damage, as the repair is manageable and not overly costly compared to more extensive engine repairs.
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4 comment(s)
KaiserMark (community.author)
Hey, that actually sounds like a similar problem I had with my Mokka. I also wanted to add that I think replacing the rail pressure sensor requires an expert. Even with the online tutorials, I wouldn't be confident enough to tackle it myself. Just one question, do you remember the cost of the repair in your case? And have you had any other problems since then or has everything been fine since the repair? Best regards!
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KarlH20
Hey, you're absolutely right, the do-it-yourself thing isn't for everyone. When I took my Astra to the mechanic, it cost me €240 to replace the faulty pressure sensor. That's not a lot of money, but at least it fixed the problem. And since then, the famous faulty signal from the rail pressure sensor has disappeared. Since the repair, there have been no further problems and my car is running like clockwork again. So don't get too stressed, it's manageable! Greetings back!
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KaiserMark (community.author)
Hey, thanks for your help! It's definitely reassuring to hear that it's not a complete engine change and that there have been no further problems since. 240 is quite a lot, but compared to the cost of a new engine, it's really okay. Better than sitting in a cloud of smoke all the time, right? I'm going to follow your advice and see a mechanic as soon as possible. Never would have thought that such a small component could have such a big impact. Learned something again, eh? Thanks again and best regards!
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OPEL
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MOKKA
KarlH20
Hi, I had similar problems with my Opel Astra (petrol, year of manufacture 2015, approx. 170,000 km). The engine jerked, the performance dropped and the fuel consumption increased enormously. My garage then found a defective rail pressure sensor. That sounds bad, but don't let it worry you. It wasn't necessary to replace the entire engine, just this one component. And depending on how familiar you are with cars, you may even be able to do it yourself. There are plenty of videos online that can help you. The important thing is that you don't spend too long on it. The longer you wait, the more damage can occur. So my tip would be to go to the garage and have it checked. And if it's the pressure sensor, then it's not the end of the world. Good luck!
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