Early Cup Cars, Bosch M5.2.2 and MoTeC
10-11-2016, 10:43 AM
#1
Drifting
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Early Cup Cars, Bosch M5.2.2 and MoTeC
I put together a short document based on some work I did to get the Cup rocking with a MoTeC CDL3. This should work for any/all MoTeC devices. It's also valid for 1997->1999 Boxsters (SPB).
The early Cup cars DO in fact speak over the CAN bus, it's present because the street cars needed to communicate with the automatic transmission. In fact it's present in the connector in the passenger footwell, it's just unterminated from the factory. So it's easy to tap in w/o having the scruts give you the stink eye for having connectors tapped into the ECU/DME. ;-)
See attached document for detailed config information. Hope this helps someone in the future.
Bosch522_porsche_cup_early_996.pdf
The early Cup cars DO in fact speak over the CAN bus, it's present because the street cars needed to communicate with the automatic transmission. In fact it's present in the connector in the passenger footwell, it's just unterminated from the factory. So it's easy to tap in w/o having the scruts give you the stink eye for having connectors tapped into the ECU/DME. ;-)
See attached document for detailed config information. Hope this helps someone in the future.
Bosch522_porsche_cup_early_996.pdf
10-11-2016, 01:11 PM
#2
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Terrific! Thanks!
The CDL3 kit, now at a much reduced price, is a great option for these older cars. This kit includes enabling Logging, the GPS module and other accessories.
I occasionally stock these, and would be glad to help.
The CDL3 kit, now at a much reduced price, is a great option for these older cars. This kit includes enabling Logging, the GPS module and other accessories.
I occasionally stock these, and would be glad to help.
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10-11-2016, 05:13 PM
#3
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Wow. That's really cool. I had mistakenly assumed on my 99 C2 6MT (Bosch 5.2.2) that there wouldn't be any data on the CAN since I didn't have a tiptronic. Do you know what type of bus speed (Hz) you are getting from it?
10-11-2016, 08:12 PM
#5
Drifting
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Also, worth noting:
If you are using the CDL3 with GPS, you will want to configure it as:
Connections->Communications->CAN 1->Select->GPS - Standard RMC GGA
Then be sure to set the Mode: RS232 RX and Rate: 38400 Actual: 38422
If you are using the CDL3 with GPS, you will want to configure it as:
Connections->Communications->CAN 1->Select->GPS - Standard RMC GGA
Then be sure to set the Mode: RS232 RX and Rate: 38400 Actual: 38422
10-12-2016, 02:12 AM
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wow this is timely. I wired CAN months ago to pin 85 & 86 to sniff and saw two messages 316 & 329. Figured they were junk. I don't see where the Bosch file is. Any idea where on disk these are?
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10-12-2016, 08:54 PM
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10-12-2016, 11:24 PM
#10
Drifting
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Yep, in fact I had a MoTeC SDL logger in my SPB. You just need to tap in near the ECU to get the signal. I don't recall if I had to terminate the bus or not, I am thinking I didn't need to terminate it.
If you are going to tap into the wires leading to an ECU, I would recommend using connectors called 'positaps'. This is because they will lead to the best results and least drama with messing up the conductors and not require specific tools.
If you are going to tap into the wires leading to an ECU, I would recommend using connectors called 'positaps'. This is because they will lead to the best results and least drama with messing up the conductors and not require specific tools.
10-12-2016, 11:38 PM
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10-17-2016, 05:18 PM
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Note, some 97-99 cars that do not have the tiptronic installed may not have wires in those holes for the CAN at the ECU connector. Since I couldn't figure out how to take apart the ECU connector without breaking it to add in more terminals, I just stripped a bit off the end of the 22 gauge mil spec wiring and shoved the wires up into the empty holes of the connector. Has worked for me without any problems for many years. Also, you can change the CDI 1 Eng RPM channel to just Engine RPM rather than keeping the other name which was a temporary channel I was using years ago since RPM is also on the OBDii connector as a square wave wire. The channels over CAN update at 50 Hz I believe. The wheel speed channel is one of the rears, the other three come out of the ABS computer if you have the terminals to add them in. Therefore you can get all 4 wheel speeds, though a small time shift delay on the one over CAN compared to the direct 3 out of the ABS. Note the ABS is also difference if your car has TC or doesn't have TC.
10-17-2016, 09:55 PM
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Has anyone tried this with an AIM yet?