I just bought an m52b28 which I plan on swapping into my e30 touring, I have previously done an m5x swap using an early M50B25NV into an e30 sedan, But the m52b28 seems a whole new ball game with regards to wiring it in.
I have the entire engine / sensors etc, Loom and ECU but that is it. No EWS box or key,
So the way I see it, I have 3 different paths for getting it running,
1. OBD1 swap using an M50B25 Vanos ECU, Loom and sensors / electrics then have that tuned once wired up and running.
2. EWS Delete the E36 M52B28 ECU by cutting wire 66 as per the EWS Wiki - Does this work without having the EWS box and completely eliminate any need for wiring the ews system in anywhere?
http://www.e30zone.net/e30zonewiki/index.php/EWS
3. Buy a matching m52b28 ECU and EWS box, key etc. And follow the EWS wiki for wiring in the EWS system to my e30.
I am New Zealand based so I was directed to ask on UK forums where we had the same Euro spec BMW's.
If I do go down the EWS delete (Which I would prefer as that way I can keep the motor intact as it was removed in a running state), And add in a m50b25 intake manifold.
EWS Delete E36 M52B28 OBD2
Moderator: martauto
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DanThe
- E30 Zone Team Member

- Posts: 28649
- Joined: Sat Sep 10, 2005 11:00 pm
- Location: Staffs
OBD1 swap is only a way backwards
Cutting that wire wont make any difference, the engine still wont start
PM me for EWS delete
Cutting that wire wont make any difference, the engine still wont start
PM me for EWS delete

