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juliadark74

Megane injector cable issue

Experiencing high fuel consumption and reduced power with my 2016 Renault Megane diesel. It sometimes stalls at idle, and there's smoke when accelerating. I suspect a defective cable or plug connection. Anyone else had this?

4 comment(s)

elizabethswift7

Sounds familiar! My old 2012 Opel Astra had the same symptoms: smoke, stalling, terrible fuel economy. Have you checked for fuel leaks? Maybe the air filter is clogged. I'm not an expert though...

juliadark74 (Author)

No visible fuel leaks, and the air filter was recently changed. My scanner shows error messages related to a faulty injection system. Given your similar symptoms, was your issue electrical?

elizabethswift7

On that old Opel Astra, it was more than just a loose wire. The mechanic mentioned a faulty injector or two and ECU issues. Given your scanner readings, I'd take it to a workshop. Hopefully it's just a defective cable or plug like you suspect, but these things can be tricky.

juliadark74 (Author)

Took your advice and visited my local garage. You were right! They found a defective cable connection on one of the injectors. A replacement and some labor later, costing 95€, the Megane is running like new! Thanks again for sharing your experience.

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