M42 wiring

[Vladi]

I've got a friend who recently swaped an E30 M42 and managed to fry his ECU. Trouble is we can't find an e30 m42 ECU anywhere, but we found 3 busted e36 m42's. (mechanical reasons)
Could we take the wiring harness and the ECU from an e36 m42 and install it an the e30 m42?:rolleyes:

Thanks!

[ak96ss]

May be able to, but the E36 ECU is going to be looking for a knock sensor, so you'll need to get used to the check engine light. Too bad you aren't in the US, I have two E30 M42 ECUs sitting here.

[Lund8200]

I have been running a E36 ECU on my E30 318iS, it made no faults for the short time it was mounted.
BTW, there is a few ECU´s for sale on www.ebay.de

[Artem]

Can I flash the chip with the E36 tuned software and run it that way?


Or use the chip from the E36 DME?

-Artem

[vatos_p]

you can just change the wiring and the ecu with a m42 e36 ecu , and add knock sensor , change the AFM with a MAF ( the e36 uses maf ) and the car will work fine...

[Artem]

you can just change the wiring and the ecu with a m42 e36 ecu , and add knock sensor , change the AFM with a MAF ( the e36 uses maf ) and the car will work fine...

Yea, I was kinda hoping to avoid that... I wanted to use stock wiring from an E30, but a 95 motor. And I know that the cams are going to be different, so I figured the fuel maps would probably have to be different as well, right? I mean I know it will probably run, but not well... (Or am I wrong?) I would do the wiring thing, but I am pretty sure I am only getting the bare engine, so I wont have the access to that, unless I buy it all separately.

-Artem

[Artem]

Hello, I would like to bump this as I really need help.

I got the motor, its in very good shape, I want to put all my E30 accs on it, and run it, however I dont want it to run like crap when i put it in the car. I am pretty sure the cams are of a different design for the E36 318is, especially the later one - as I have the 95 motor, that is why I would like to know if anyone can tell me, if I put the stock E30 wiring harness and the E30 DME and sensors, what will happen to the way the car runs, I would like to have the similar fuel economy and the power of an E36, on a stock E30 DME, and for that I would probably just need a fuel map, right?

I am new to this mapping thing and I would really like some help please!!

Thank you!! :)