from pirate:
"This harness allows you to plug a 3RZ engine and computer straight into your '85 - '95 EFI Toyota truck."
also from pirate (scroll down about an inch):
•3RZ 2.7L Conversion Wiring Harness - Stand Alone
$700.00 ORS-EC100 Manual Transmission
This is a stand alone harness that takes care of all the wiring when installing a Toyota 3RZ into any make or model.