Motronic 1.1/1.3 M30 conversion question

[Garageaholic]

Engine: 1989 E32 735i with Motronic 1.3
Car: 1988 E30 325 Supereta with Motronic 1.1

I tried doing the wiring with the M30 engine harness and trying to adapt it to the E30 wiring, but since it came from an automatic car, the ECU is adapted for the automatic transmission, and there is alot of shit to bypass and change...

If I use the M20 325 engine wiring harness instead (which has a motronic 1.1 ECU),

Will it be compatible?
Will it not be enough fuel because the ECU is from a 2.7L engine instead?
Can I just hook up my M30 ECU after all is said and done?
What will change?
How can it be chipped then?
Does the ECU have to match the car? or the engine? or both?

Thanx alot for the help...

[rs4pro3]

as long as the e30 wiring is from a 325i, your M30 ecu will plug right in and work.

[Garageaholic]

why not the 325 ? what is the big differences?

different sensors? I was going to plug my 179 M30 ECU right in to the M20 harness... it has the same pin locations on the ECU....

[rs4pro3]

the 325e uses a 2 row ecu connector, that the motronic 1.3 m30 ecu will not plug into(has 3 rows)

[Garageaholic]

Yeah, my 325 is a motronic 1.1, so it is the bigger DME... in that case. i believe it is interchangeable...