Mokka starting issues

My 2017 Vauxhall Mokka diesel is having starting issues, rough idle, and occasional stalling at 45410 km. The check engine light is on, fuel consumption is up, and error codes point to the fuel pump. I've checked the wiring and plugs, but could a faulty connection cause these symptoms?

4 comment(s)

Sounds frustrating! I had similar issues with my Mokka: engine stalling, rough running, the whole shebang. Have you checked the fuel injectors too? Sometimes they can get clogged and cause similar problems.

I haven't checked the fuel injectors themselves, focusing on the fuel pump due to error codes. If the injectors are clogged, would that cause the error codes to point towards the pump? Could a bad connection there affect the injectors too?

It's possible, though less likely that a connection directly affects the injectors. A failing pump can definitely mimic injector issues. Given your symptoms, the codes, and my similar experience, it's worth getting the fuel pump properly diagnosed by a workshop. It could save time and headaches.

Thanks a lot for the advice! I appreciate you sharing your experience. I took it to a workshop and had them check the fuel pump thoroughly. It was a defective cable/plug connection. Cost 95€ to fix.

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