I too haven't been able to find one of these exact wiring diagrams.
Pop open the ECU and read off the wire codes from the board in there. From these, the MAP AE93 GZE wiring diagram and the wiring for the AFM from an AW11 GZE I think you should be able to work it out.
While I don't have hands on experience here, I'd say the pin names **shouldn't** change between MAP and AFM AE92/3 GZEs. Just the parts related to the MAP/AFM will be different.
Good luck
Hen
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