How would you check for a stretched timing chain on a modern car with no distributor and no HT leads…

How would you check for a stretched timing chain on a modern car with no distributor and no HT leads to connect your timing light too.also their is no visible timing marks on the cover

a timing light that uses an inductive sensor works fine, you place it on the coil on plug assembly and it will fire. But if ther are not timing marks, you are screwed then and would have to take the timing cover off and check the line up marks at TDC

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