Ok, got the dongle all connected up. Checked fault codes out of interest and got the attached, which seeing as these engines have a terrible history with EGRs, I'm guessing is not good.
However, it does say test not completed, so don't know if I need to drive it. Cleared and started engine, came back.
Looked at live data and there was a % for EGR requested and EGR position and at idle they were pretty close, when engine revved the requested% moved a lot faster than the position of course.
Presumably if there was an issue then I'd have a fault code warning on the dash though.
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