Immobilizer Issues After Engine Swap

Hello.

I'm going to convert my 1999 Bora with a VP TDI 90 hp ALH engine to a PD TDI 115 hp AJM engine.

1. Wie bekomme ich das mit der Wegfahrsperre am besten hin? Als logisch erscheint mir das Tacho, was zum AJM gehört einbauen und den Transponder vom AJM Schlüssel in meinen Schlüssel einstecken. KlDoes that work?

2. Does the immobilizer have its own control unit, or where is it located?

'Does anyone know if I can install a speedometer from a 05/2002 Bora into my 06/1999 Bora without having to rewire the entire interior wiring harness? My Bora already has CAN bus functionality, at least I don't have to enter a code on the original radio when the battery is disconnected. And I can also read the CAN bus data using VAG COM.'

Regards,

Paul.

Hello Paul,
...I will convert my Bora, manufactured in 1999, with a VP TDI 90 HP ALH engine, to a PD TDI 115 HP AJM engine.
rearrange.
... Have you thought about that carefully?


1. What's the best way to handle the immobilizer? What seems logical to me is...
Hey, what needs to be installed from the AJM and how do I transfer the transponder from the AJM key to my key?
Schlüssel einstecken. Will that work?

It should work.

2. Does the immobilizer have its own control unit, or where is it located?
In the speedometer.

Best regards,
Rudi

Without interrupting Rudi , the actual WFS (Wireless Flexible System) is located in the engine control unit. The speedometer is just the 'connection' that brings all the components together. CAN gateway <-> key <-> reading coil <-> engine control unit, and this is where the key data is stored. If you have the speedometer, the control unit, and the keys/transponders, you only need to reverse the polarity and you can start.

3. Does anyone know if I can install a speedometer from a 05/2002 Bora into my 06/99 Bora without having to rewire the interior wiring harness?

The internal wiring harness has little to do with the speedometer connections. The difference may be in the connection to the comfort CAN bus. Alternatively, the pins with comparable connections need to be rewired. This can be seen in the specific pinout of the speedometer (depending on the year of manufacture). An overview of the pinout was previously available in the GTI-TDI forum, taking into account the vehicle and year of manufacture.

I've just noticed that you already have a thread running on that topic.

I think we can then mark this topic as complete.