I have relayed this info to Jim but decided to post it here for the benefit of all following up this discussion. Juan

The wires going to the solenoids on the MFI:

1. White wire on top solenoid
2. Red wire to bottom solenoid

On the heavy red wire, the one I have located (quite heavy with a circle connector) goes to the left front corner of the engine bay (towards front of the car) and is then routed on the left of the engine bay to the relay board. There is is connected to an oval shaped "junction" which has this red wire coming into the center and there is another red wire going up and back into the loom. This apparently is a main feed into the relay board. This connection is mounted perpendicular to the floor and is the rearmost connection on that board.