I got the engine check light come on my Focus 2.0 TDCi the other day with no other symptoms or loss of performance. I took it to my local independent who put a code reader on it. It came up with an EGR fault.
They reset the light and the car was fine for a day or two before it came on again. It looks like the EGR valve needs either cleaning or replacing. Access isn't too bad so I may have a go at cleaning it but I've not done one before. Is it just a case of cleaning out the carbon internally using carb cleaner or similar?
If the EGR valve is cleaned or replaced, will the engine check light go out or will it have to be reset by the garage again?
TIA,