Black smoke and loss of power in Ford Transit 2018: Possible lambda sensor heating problems?

Hi buddy, I once had a similar problem with my 2015 Ford Focus. Just like yours, black smoke, loss of power and the check engine light was on all the time. Eventually it turned out that the engine control unit was faulty. The diagnosis was actually nasty, but the problem itself wasn't as severe as it first seemed. In my case, no additional repairs were needed and they only had to replace the engine control unit. The engine ran like clockwork again afterwards! The workshop visit was okay. Not the best, but definitely better than my last one. As you have similar symptoms, it could be a similar problem. Although it could also be the lambda sensor as you thought. I still recommend getting it checked at the garage. Good luck with it, I hope it's nothing too bad.

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Hey, thanks for the info, your experience sounds really similar. The engine control unit was a nasty scare, I'm glad there were no further repairs. How much did the whole thing cost you, if you don't mind me asking? Did anything else unexpected occur after the repair or has everything been running smoothly since then? Best regards!

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Hey, yes, the engine control unit cost me quite a lot - €1000 in total. But I didn't have any more problems after that. The car ran smoothly again. The jerking when accelerating and the increased fuel consumption were also gone. I also had problems with the lambda sensor heating as you suspected, but that was fixed by the mechanic and everything has been fine since then. So yes, everything has been running smoothly since then. I hope you find a solution to your problem too, good luck with that! Best regards!

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Wow, that's pretty expensive. But if it really solves the problems, it's probably worth the money. Just hope I can get away with something a bit cheaper. Good to hear that everything went well for you after the repair. I think I'll go to the garage and get it checked out too. Thanks again for your help and useful tips. Your experience of being a mechanic has really opened my eyes. Now at least I have a concrete idea of what could be wrong. I wish you all the best with your car. Keep me up to date with anything new, will you? Best regards and thanks again!

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I have a 2010 ford mustang 4.0. It is throwing a fault for o2s11 and o2s21. I'm trying to check continuity of the wire at the pcm but need the pin locations does anyone have that?

Hello Russell, Thank you for your question. The pin information for the connectors can be obtained from the user manual of your 2010 ford mustang 4.0 or from an authorized ford workshop. The error codes that you mentioned are related to oxygen sensors, I would recommend getting your vehicle checked by a professional mechanic. Please keep us updated on the progress. Do you have any other questions or concerns? Best regards, CarlyAdminNik

Hello I have a ford focus 2018 with 65000km in which you have already changed the oxygen sensor 5 times about every 10000 I am plugged with soot apart from the problem of diesel with short trajectories and all that is not my case can come the problem of another site as injectors a bad combustion cylinders or something that is making me fill with soot? Thanks

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Hello Franky, It's unusual to have to replace the oxygen sensor so frequently. The issue could indeed be related to other components such as the fuel injectors, or even a faulty EGR valve causing excessive soot. It's also possible that there's an issue with the engine control unit (ECU) that's causing incorrect fuel-air mixture. I would recommend having a comprehensive diagnostic test performed on your vehicle by a professional mechanic to identify the root cause. Please keep us updated on the progress. Do you have any other questions or concerns? Best regards.