Mini Paceman Turbo Issue Resolved

Alright, so I've got a 2015 Mini Paceman and it's throwing a fit. The check engine light's on, and it feels like it's jerking whenever I try to accelerate. Plus, there's this whistling noise, almost a loud hissing, when I put my foot down. Sometimes, the engine even stalls at idle. I've also noticed higher fuel consumption and a definite reduction in power. I'm suspecting the boost pressure sensor, possibly a defective cable or plug connection on it. Any thoughts before I start tearing into the turbo system?

4 comment(s)

Sounds like you've got a boost leak somewhere in your turbo system. I had similar symptoms on my Paceman – check engine light, loss of power, and even the whistling noise. The pressure sensor is a good place to start. Have you inspected the hoses and intercooler for any cracks or loose connections?

When you had those symptoms on your Paceman, was it also specifically the cable or the plug connection of the sensor that was causing the issue? I've checked the hoses and intercooler, and they seem fine, so I'm leaning towards the sensor being the culprit.

Yes, the problem was located in the pressure sensor, but I decided to take the car to the workshop. You should also consider visiting the workshop. I paid 95€

Right, I've sorted it. Turns out it was as you suggested – a dodgy boost pressure sensor connection. New sensor and a bit of fiddling with the wiring, and she's running like a champ again. Whistling's gone, no more jerking, and the CEL is finally off. Thanks for pointing me in the right direction; that saved me a ton of diagnostic time.

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