By comparing it to the 551F  bin.. It looks to be at 0x109C6

Resurrecting this thread with additional related content. I’ve had a 2.7t running on a tuned 8D0907551M file in a Boxster for a couple years now. Thanks to all that have contributed to this forum as I’ve learned so much.

The new question is regarding vehicle speed signals into a 8D0907551M. For the last couple of years, I’ve relied on a wired pulsed signal feeding the ecu but there are reasons why this is not a good solution for my application… sending over CAN would be greatly preferred.

From the FR, setting CWGGVFZG bit 0 (CWGGVFZG=1) we should expect to take vehicle speed from vfzgkb_w over CAN from the cluster (Kombi 1)… alternatively if we set bit 1 (CWGGVFZG=2) we should expect to take vehicle speed from vamsr_w over CAN from abs (Bremse 1).  The problem is that I haven’t been able to get either of these CAN methods to work and am thinking that this functionality is not present in this file.  Also, I’ve made sure to set CW_CAN_R appropriately. Everything I’ve tried results in the wired/pulsed signal being the only source for VS.

Has anyone used VSS over CAN in a 8D0907551M file? Is there anything else that needs to be set to enable incoming CAN signals?

gremlin - YES! Thank you so much! Confirmed that the correct location for CWGGVFZG is 0x10005, not what was recommended above.  VSS is back and boost by gear too, all over CAN.

On a side note, the Boxster Bosch ABS 5.7 unit sends out the same addressed and coded CAN message as what the 551M expects. I love how much overlap there is amongst the auto manufactures at that time.