I saw a post by nando stating it's possible to run the N52 with an MSV80. However, it seems most everyone on this subforum that has a running car has used an MSV70, and a backdated wiring harness if the car came with an MSV80. Is there a reason for this? Thanks!
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We're using the backdated wiring harness to get the Z4 IVM, puts all the fuses (except main power) and relays in one place. I've only found a couple pins different between MSV70 and 80, they use the same connectors; could use any N52 harness just switch pins around to match your ECU. I went with MSV70 based off the original N52 thread and Nando's swap tune. Unfortunately, I haven't been able to get in touch with Nando for the swap.
I think I'm the Guinea Pig for trying another tuner, the ones I know of all used Nando. My MSV70 ECU is off with 22RPD for the swap tuning. I used them because I know they have done some work on another E30 running an N52. I won't know if their swap stuff works as well as what Nando created until I get it back and get the engine in though.Last edited by Striker01; 06-18-2024, 03:49 PM. -
oh ok, that makes a lot of sense. So the late model harness can plug into the Z4 IVM and MSV70 DME, so long as a few pins are switched around as described in your thread? Or am I interpreting you incorrectly?Comment
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The late model harness will plug into the DME but you will need Z4 connectors for the IVM. I had 2 Z4 harnesses and one e90 one that I used parts from to make my harness. If you use only the late model harness you may have to re-pin some wires.
I can send you the remnants of the harnesses I used. Should get you all the IVM connectors except the X60191. I used a BMW radio pigtail I found on ebay and trimmed the tabs to fit, see LUKEJ's thread for that info. It doesn't come with the Z4 harness because I assume it was on the body side harness on Z4s.Comment
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It’s very simple to update from MSV70 to MSV80.
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