Post by strombomb on Jan 18, 2023 6:09:27 GMT
Hey I've been working on doing the opposite of what most people are looking for here (converting from a DQ250 equipped car to a manual transmission), but I believe the discussion will still be beneficial for the forum.
With my manual-swapped car, I'm trying to introduce rev-matching like is present in cars equipped with the DSG transmission (using the original ECU by feeding it CAN messages using an Arduino). I have been able to achieve various other functions through CAN manipulation but not this one (example: I display current gear in the instrument cluster). I've managed to piece together many of the CAN messages found in ID's 0X440 and 0X540... and have come to believe the below are relevant to rev-matching:
0X540 Byte 1 bit 4: Contains an enabler for this throttle blip function
0X540 Byte 4: Target synchronization RPM
0X540 Byte 5: Inverted synchronization RPM
0X540 Byte 6: Desire synchronization time
I've been unable get this to work and am hoping to get some help here. Does anyone know what messages need to be sent to the ECU to enable the throttle blip/rev-matching?
Alternatively, if someone could post a CAN data dump that contains a downshift with throttle blip, I think I could sort out it out. I saw another post of a MK6 CAN dump containing these addresses, so I'm hoping someone could do that again that includes a downshift with blip.
Thanks in advance!!
With my manual-swapped car, I'm trying to introduce rev-matching like is present in cars equipped with the DSG transmission (using the original ECU by feeding it CAN messages using an Arduino). I have been able to achieve various other functions through CAN manipulation but not this one (example: I display current gear in the instrument cluster). I've managed to piece together many of the CAN messages found in ID's 0X440 and 0X540... and have come to believe the below are relevant to rev-matching:
0X540 Byte 1 bit 4: Contains an enabler for this throttle blip function
0X540 Byte 4: Target synchronization RPM
0X540 Byte 5: Inverted synchronization RPM
0X540 Byte 6: Desire synchronization time
I've been unable get this to work and am hoping to get some help here. Does anyone know what messages need to be sent to the ECU to enable the throttle blip/rev-matching?
Alternatively, if someone could post a CAN data dump that contains a downshift with throttle blip, I think I could sort out it out. I saw another post of a MK6 CAN dump containing these addresses, so I'm hoping someone could do that again that includes a downshift with blip.
Thanks in advance!!
