[xj40] Engine runs rough then stop with half tank

Hello all

Perhaps could someone possibly help me out on this one?

My Daimler 4.0 1991 runs rough then stop for about 20 minutes when
the fuel tank reaches half full.

If I leave the car alone for 30 minutes, engine starts and problems
clears itself.

Codes 44 and then 16 comes up.

I changed the Ignition lines and cover as well as plugs.

The fuse for the fuel pump was changed as well as fuel filter.

Any ideas?–
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Hi mate did you ever work it out