Hello, I have redeemed my bulli from a 1.6TD (due to piston-eater) and now equipped with an AGG-motor (1996). The mechanical conversion has been completed for some time. The electrical system has been converted and installed in tiring work. I have had the immobilizer programmed by a professional. I now have the problem that the engine does not ignite. After several measurements of the wiring, I am sure that everything is fine. Sensorik I have also exchanged Now only the reading of the control unit helps me to get the reason for the cause. Unfortunately, there was no OBD interface on the dispenser motor. Unfortunately, I find nothing in the documentation of the control unit available to me. – Question 1: Which pins (on Simos) are for the OBD interface (K-line, etc.)? – Question 2: Is the OBD connector assignment so correct : PIN 4: Mass Chassi PIN 5: Mass signal PIN 7: K-line PIN 15: L-line (doesn’t I think?) PIN 16: Battery + – Question 3: Do the immobilizer cables (SIMOS PINs 11 and 43) still have to be connected? And if so, where, how? [/list] I would like to thank you for the help and tips that could help me in my desperate situation.