Hi

I have a bit odd project where I need to run N43B16 engine from E87 on E36. Engine is already in but I need to sort out the wiring. The aim is to run the engine on standard ECU.

I have original engine wiring, matching ECU + CAS + Key and start button. I also have original fusebox, fusebox module, fuel pump module (EKPS), DCDC converter. All wired up with original wiring. But I still can't seem to turn on the ignition. Key works but when I turn on the ignition I only hear "ding" and airbag warning light illuminates on dash.

Can someone give me some advice what I am still missing? Do I need everything from E87 like footwell module etc? What is the minimum I need to run the engine off original car?

Any information is highly appreciated.