leonschulze22
Mini Cabrio Faulty Injection System
Summary of the thread
A 2008 Mini Cabrio is experiencing a faulty injection system, leading to higher fuel consumption, reduced engine power, stalling at idle, and smoke during acceleration. The issue may stem from a defective cable or plug connection within the injector wiring harness or related sensors. Checking and repairing these connections resolved the problem, restoring smooth engine performance.
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4 comment(s)
leonschulze22 (community.author)
When you mention cable connections, are you referring specifically to the injector wiring harness or other related sensors? Also, did you observe any smoke during acceleration, similar to what I am experiencing with my petrol Mini Cabrio?
evaeis1
Yes, I was referring specifically to the injector wiring harness and connections to related sensors within the injection system. I did not observe smoke, but each engine can behave differently when facing the same problem. Given your observation of smoke, it would be wise to have a professional check for any potential fuel leaks as well. It is possible that a faulty connection is causing an improper fuel mixture, hence the smoke. Given the potential complexity, consider a workshop visit to diagnose it properly. Do not attempt to drive it too much until fixed.
leonschulze22 (community.author)
Following your advice, I checked the cable connections, and you were spot on. A visit to the workshop and 95€ later, the defective plug connection on the injection system has been resolved. The engine is running smoothly again. Many thanks for your assistance.
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MINI
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CABRIO
evaeis1
I had a similar issue with my Mini, though it's a Diesel. Experienced comparable symptoms: higher fuel consumption, a noticeable drop in engine performance, and occasional stalling at idle. Have you inspected the cable connections and plugs related to the injection system? A loose or corroded connection can definitely cause those problems. Start there; it might save you a trip to the workshop.