CXHA problem when cold . Engine broken? Help please

tom1.0

New Member
Suddenly, at cold start, this Cxha engine from year 2019 run very badly on 3 cylinders.

No error codes but internal torque of Cylinder 1 much less than the others.

New original Vw injector fitted and still the same problem.

When the engine heats up, it runs better but occasionally jerks.

The torque of the first cylinder is still less than the other 3 .

Does anyone have an idea what we can do next?
Thanks in advance
 
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