kevinhoffmann41
CMAX diesel rough running and drift compensation error
Summary of the thread
A 2015 Ford C-MAX diesel is experiencing rough engine running and a check engine light, with an error related to "reset quantity drift compensation." A defective injection valve or injector is suspected as the cause. The suggested solution is to have the injector checked or replaced and to reset the drift compensation, which may require a visit to a workshop.
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4 comment(s)
kevinhoffmann41 (community.author)
Thanks for the quick reply! I haven't specifically checked the airflow sensors, but is there a specific car sensor I should focus on related to the drift compensation? I am not sure where to start, any hints?
ameliesteel31
Yes. It's most likely a defective injector. I ended up having to take mine to the workshop. They reset the quantity drift compensation and replaced the faulty injector to fix it. Prepare for a bill, I paid 515€...
kevinhoffmann41 (community.author)
Thank you so much for the confirmation! I appreciate you sharing your experience, it's really helpful. I will go to the workshop and get the injector checked/replaced, and have them reset the drift compensation. Fingers crossed!
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FORD
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CMAX
ameliesteel31
Sounds familiar! I had a similar issue on my Ford C-MAX. Are you experiencing any airflow sensor issues alongside the error? It could be related. Have you checked the car sensors recently?