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emmaberger2

Grandeur Hybrid engine stalling issue

My 2022 Hyundai Grandeur Hybrid with 140033 km is having issues. Sometimes the engine won't start, or it stalls when idling. The check engine light is on. When it runs, it feels rough, and fuel consumption is higher than usual. There's an error stored. Any ideas? Could it be the fuel pump?

Summary of the thread

A 2022 Hyundai Grandeur Hybrid is experiencing engine stalling, rough running, and increased fuel consumption, with the check engine light on. The issue may be related to the fuel pump, specifically the cable and plug connections. Checking these connections is suggested, and a visit to a mechanic is recommended for a proper diagnosis. The problem was resolved by replacing a defective cable, costing approximately 95€.

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4 comment(s)

miaschmid6

Sounds familiar! I had similar issues with my Grandeur, though it's not a hybrid. Engine stalling and rough running were the first signs. Have you checked the fuel pump's cable and plug connections? That was the culprit in my case.

emmaberger2 (community.author)

Interesting! I haven't checked the cable and plug connections yet, but I will definitely take a look. Where exactly should I be looking? Is it easy to access, or do I need to remove a bunch of stuff to get to it?

miaschmid6

I'm not a mechanic, so take my advice with a grain of salt. Definitely check those connections. I’d recommend taking it to a workshop, because it requires specific knowledge. They should be able to diagnose and fix it quickly. It was a defective cable in my instance as well. The repair was only around 95€, so it shouldn’t break the bank.

emmaberger2 (community.author)

Thanks so much for the advice! I checked the fuel pump cable and plug connections, and everything seemed fine. I brought the car to my mechanic, and he found the defective cable as well. It cost me 95€ too! You were spot on! Appreciate the help!

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HYUNDAI

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GRANDEUR