rusefi_documentation/Hellen-88-BMW.md

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# Hellen 88 BMW
<a href="https://www.ebay.com/itm/334235601464"><img src="Images/ebay_gen_button.gif"></a>
PnP Development board for M50
M60 and Pre-1995 Euro M3
M50tu and Pre-1995 USA M3
[snapshot bundle](https://rusefi.com/build_server/rusefi_bundle_hellen88bmw.zip)
[schematics rev A](Hardware/Hellen/hellen88bmw-a-schematic.pdf)
[Issue Tracker](https://github.com/rusefi/hellen88bmw-issues)
[ibom-a](https://rusefi.com/docs/ibom/hellen88bmw-a-ibom.html)
[BMW e34](BMW-e34) E34 ~= E36
[BMW e36](BMW-e36)
[1996 325 electrical manual](https://github.com/rusefi/rusefi_documentation/blob/master/OEM-Docs/Bmw/1994_e36/1996%20BMW%20318is-c%20-%20320i%20-%20325i-c%20-%20328i-c%20%20Electrical%20Troubleshooting%20Manual.pdf)
[Dev Pinout Notes](https://docs.google.com/spreadsheets/d/1OiEaak7TElKwF-fXWvl9Dk-fD84a0NENe6lOwhXiOe4/)
![x](Hardware/Hellen/hellen88bmw-rev-a-assembled.jpg)
## Supported
Up to 8 cylinder with OEM dumb or aftermarket smart coils. We hope that this board supports:
* M3.1 - M50
* M3.3 - M60 and Pre-1995 Euro M3
* M3.3.1 - M50tu and Pre-1995 USA M3
## Not supported
This board definitely does not support:
Siemens
* MS41.0 - E36 M52
* MS41.1 - E39 M52
* MS41.2 - E36 M3 USA Post 1995
todo: clarify about
Bosch
M1.7 - E30 M42
M1.7.2- E36 M42
M1.7.3 - Z3 M44
M5.2 - E36/Z3 M44 and M62 and M73
## Auxiliary Pins
* DC Motor for drive-by-wire or DC motor wastegate see J19
* Dual channel PPS and TPS sensors add-on connector. We are hinting at M52 swaps into E36. See J20 and J21 for sensor hookup.
* GPIO pins XXX:
## Spare Parts
Extra ECU connector terminals: 969005-2 & 927845-2