solenoid wiring issue

[tektic]

Ok first the Facts:

GVR4 Pins
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EGRS: Pin 53 Ground, Pin 102 Power (CA only?)
PCS: Pin 62 Ground, Pin 102 Power
BCS: Pin 105 Ground, Pin 102 Power
FPS: Pin 7 Ground, Pin 102 Power
o2 heater: MFI Relay pin 4 power, Pin 101 ground

My car (Wired like a 1993 model for some reason)
----------------------------
o2 heater: MFI Relay pin 4 power, Pin 105 ground


First of all if its not too much trouble can someone please look at a hard copy of the o2 sensor wire diagram. I only have the pdf version and it looks like it may have been edited.

Is there any reason I can't swap this back to ecu pin 101 so I can use pin 105 for a solenoid again?

Is there any reason to use power from MFI Relay pin 4 over ecu Pin 102?

I'd hate to find out the hard way an melt a perfectly good ecu.

Thank You