Engine Swap from 90 MT AWD to 92 AT 2WD - Harness Incompatible

M

Mick McL

I am trying to put the engine from a 90 Legacy MT AWD into a 92 AT
2WD.
The main wiring harness from the engines are different.
The 90 has 3 connectors while the 92 has only 2.

Can I modify the harness? Where do I get the wiring diagrams?
Alldata or
do I need to buy the Subaru factory manual?

Or could I swap out the intake manifolds too and hopefully use the old
harness (it seems
to be connected to the manifold, injectors and various sensors.)?

Any advice greatly appreciated!
 

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