Good day

I have an 2005 astra h estate z18xe
And I retrofit esp in an abs car 😎
And it works short of 🧐
I had to Change the pomp to an HD type
and placed the Yaw rate sensor BA type the car wash pre wired up for esp
And I Changed the CIM to an ZU type


Esp works well bud now the problem

Hills start assist will not work what can I do to let it work ?

Everything is programed Whit tech-2 software

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