jenniferblaze84
Grandeur diesel rough running issue
Summary of the thread
A 2007 Hyundai Grandeur diesel is experiencing rough engine performance and a persistent check engine light, with error codes indicating a 'reset quantity drift compensation' issue. The onboard diagnostics suggest a potentially defective injection valve or injector. A reset procedure related to drift compensation might be needed before considering part replacements. A similar case was resolved by replacing a faulty injector, suggesting a visit to a mechanic for further diagnosis and repair.
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4 comment(s)
jenniferblaze84 (community.author)
Thanks for the quick reply. I haven't specifically noticed any major changes in fuel consumption, though it might be slightly worse. As for exhaust smells, nothing out of the ordinary comes to mind. Do you remember the exact error code you had and what fixed it?
daniel_herrmann1
I can't recall the exact code, but it definitely had something to do with the injectors. I messed around with it for a bit, but honestly, I just took it to a workshop. They ran some tests and replaced one of the injectors. Problem solved. Sounds like you might have the same issue.
jenniferblaze84 (community.author)
Appreciate the insight. Sounds like a trip to the mechanic is unavoidable. The error code and your experience confirm my suspicions. The final bill was 515€, as they had to replace one of the injection valves. Thanks again for the help!
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HYUNDAI
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GRANDEUR
daniel_herrmann1
Hey, I've got a Grandeur diesel too. I had similar symptoms last year - rough running and the check engine light. Did you notice any change in fuel consumption or any unusual exhaust smells?