[Anonymoose]

Hopefully I'm the only moron here running a 21 on the track but figured I'd drop some knowledge that would have been helping as I was researching.

Aim doesnt support 2021 bmw m2 yet but with the help of support I was able to get 9 values.

Below are pics of the values and settings. Hopefully this helps someone.

[Fabb]

Running 2 DL with canbus. Right off the bat I have way more data than I needed. Highly recommend the canbus connection than ODB. Data rate is higher as well

[Anonymoose]

Originally Posted by Fabb

Running 2 DL with canbus. Right off the bat I have way more data than I needed. Highly recommend the canbus connection than ODB. Data rate is higher as well

Got any wiring diagrams by chance?

[Fabb]

Originally Posted by Anonymoose

Got any wiring diagrams by chance?

Follow this guide on canbus tapping. Very helpful. It's do-it-once worry free solution, and you can use your ODB port for other purposes

https://f80.bimmerpost.com/forums/sh....php?t=1017936

[M1500Z]

'21 M2 Comp here as well. I've been running a Solo 2 DL for quite some time wired into the CAN bus. I think I was able to get it to run via OBD with an older BMW ECU protocol, but it's been a while so I don't remember.

If you wire into the CAN, just run the BMW-F_series protocol.

Use the guide that Fabb posted as a, well, guide to wire into the FEM on the passenger's side kick panel. I used factory connectors so it didn't require cutting—takes a little planning and about an hour to execute. You'll get all the data you need (except f'n oil pressure).

[pal]

Originally Posted by "M1500Z"

I used factory connectors so it didn't require cutting—takes a little planning and about an hour to execute.

Part numbers and deets please 🥃

[Anonymoose]

Originally Posted by M1500Z

'21 M2 Comp here as well. I've been running a Solo 2 DL for quite some time wired into the CAN bus. I think I was able to get it to run via OBD with an older BMW ECU protocol, but it's been a while so I don't remember.

If you wire into the CAN, just run the BMW-F_series protocol.

Use the guide that Fabb posted as a, well, guide to wire into the FEM on the passenger's side kick panel. I used factory connectors so it didn't require cutting—takes a little planning and about an hour to execute. You'll get all the data you need (except f'n oil pressure).

Is there a way you can make a prebuilt wiring harness. I'd gladly buy one

[M1500Z]

Originally Posted by pal

Part numbers and deets please ��

Y'all are asking a lot of me . I did this back in April of last year and it took me a little while to remember how I did it.

1. Follow that guide up above to get everything apart, battery disconnected etc.
2. Remove the PT CAN wires from connector #8 at pins 47 and 48, these will go into one side of the BMW connectors
3. Remove the 12v wires from connector #3 at pins 20 and 24, these will go into the other of the BMW connectors
4. On your AiM harness, you'll add pins for the other half of your connectors—one connector for the CAN wires and the other connector for the 12v pair
5. Now you'll need to tap the wires on the AiM side of the harness and crimp the factory pins on the ends—these will replace the pins you pulled out earlier on the FEM connectors. I did all of this using some spare wire that matched the BMW colors.
6. Connect everything together. Your AiM harness should now pin into the FEM with the new wires you tapped into it, and then the connectors will connect to the factory loom where those original FEM pins are now in their new connectors.
7. Triple check that all your connections match up and you should be good to go.

This diagram I made should help. It's not a complicated task, but I may be explaining it poorly. As mentioned previously, for the newly tapped wires, I wanted to keep everything matching from a BMW standpoint—maybe you'd do it differently.

Full size image


The connectors I got are BMW 2 pin connectors, but I don't have a record of the part numbers. They look like 61132360043 and 61138373583, but I can't say for certain. My buddy who is a BMW master tech hooked me up with some pins I was missing. Again, if you're going to do it this way, get the BMW connectors because the wiring loom pins will slide right in and it's all reversible.



Lastly, when connected this way, the AiM seems to get a wake signal when the car is off (really annoying) so it'll just draw it's battery down over time. My guess is something like the car's GPS positioning or some other self-check signal is pinging the CAN bus while the vehicle is off/locked and it's enough to wake the Solo.

Originally Posted by Anonymoose

Is there a way you can make a prebuilt wiring harness. I'd gladly buy one

I'd love to help, honestly, but I'd prob have to charge more than it's worth for me and you right now. I may consider doing that in the future if there were enough people interested/willing to pay enough over cost.

[Racerx0911]

Count me in for a harness. I just use track addict and a gps antenna currently.