Got my engine and trans today!!!!

[Andy.B]

The m20 1.1 harness can be used on an m30 by cutting the sheath of the harness, routing and positioning the wires where they need to go, and then wrapping everything again.

I used the re route approach on my fiances 87 325 and only cut and spliced a single wire that was incredibly tangled up in the harness.


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[afelice]

George how did you extend the wires? Could I just use a heat shrink solder sleeve? I read somewhere that you can unwrap the injector wire and re wrap it and it will reach

[Doughnut]

Since we're all sharing a bit here:



Welcome to m30 club!

[Panici]

99% sure it would. My ECU is a 1.1, and my harness is 1.3. There's very little (if any) difference in the harness. I think all 1.3 added was stomp test (ECU trouble codes). Maybe there was more....but I think that's the major thing.

FWIW, I upgraded my "153" ECU, which is Motronic 1.1 to a "173" ECU which is Motronic 1.3.

It was literally plug and play, and added the stomp test to my car. (Along with better chip compatibility, and an improved idle)

[george graves]

99% sure it would. My ECU is a 1.1, and my harness is 1.3. There's very little (if any) difference in the harness. I think all 1.3 added was stomp test (ECU trouble codes). Maybe there was more....but I think that's the major thing.

[afelice]

My car is motronic 1.1 it's. 1987 325is I want to use my stock wiring harness but I don't know if it will work


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[george graves]

Thanks guys! I still need a wiring harness tho (if anyone has one pm me please) and I need to figure out where I can buy some transmission bolts too. But other than that I need an overflow tank and I think I'm good

I ended up using my m20 harness. Just had to extend a few sensor wires, and a few injector wires (since the m30 is longer then an m20)

[afelice]

I bought them off eBay and I thought they were powdercoated but I'll probably just use black engine paint

[squidmaster]

Fun! Good luck!

[curtis_luu]

Plans to powdercoat the mounts?

[afelice]

Thanks guys!

Also got my garagistic mounts!
Also new water pump and belt
More to come!




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[lukeADE335i]

Nice one. Good luck with the swap!

[afelice]

Thanks guys! I still need a wiring harness tho (if anyone has one pm me please) and I need to figure out where I can buy some transmission bolts too. But other than that I need an overflow tank and I think I'm good

[curtis_luu]

Good luck!

[EatsHondas]

Down the rabbit hole you go! Have fun and keep us posted!