UK Car Repair Questions? Ask a Mechanic for Answers ASAP
You will need a Hyundai scan tool on this model with the diesel the code readers will not work .
You will have to find one as the check engine light is on as it has encountered a problem with in the system.
The management system will have the fault codes stored .
Possible item for this kind of issue you explained would be a MAF sensor and a fuel rail pressure sensor too low .but a code check will confirm this .
As said above code readers will not work you need a dealer level scan tool ..
Ones you have the codes please get back to me so i can assist you further with this issue
These items where just examples of the most common possibility, a scan tool is needed to be sure as we
don't want to replace parts not needed , and yes both are expensive if not needed.
MAF is your Mass Air Flow this counts the amount of air being flown throw the air filter to the engine combustion .
Ask the garage where it is if another local shop has a Maxidas DS 708 or launch scan tool which most independent shops have , these two tool will work ..