Bosch M2.9-Golf 3GT AEK-037906258AQ

[AlexG40]

Hello guys,

I am trying to tune a friends VW Golf 3 GT (100hp) with a 1600cc (AEK) engine.
It has a Bosch motronic 2.9 with VW part number: 037906258AQ and bosch part number 0261203729/730. The chip has a software number 1267358926.
I have to mention that i dont have access to read the software of the eprom
I found the file from a forum and worked with a ABA motronic 2.9 xdf, i changed a few values such as ignition and rpm limit.

I sent him the tuned eprom, he fitted it and the car wont start. (He installed the eprom correctly from the correct side).
He mentioned me that the car has immo.

Does anyone knows what i am doing wrong?
Does this ecu needs checksum correction
The immo code is in the chip file?

I would be grateful if you could help me.
Here is the ori file:

[2200]

ori file has wrong checksum. think not good read.

[AlexG40]

Thank you very much for your reply