Update - Car Is Running Again !
My brother and brother-in-law with further online searching and troubleshooting have my car running again...!
They were reading online, where the information suggested that they check the fuel pump relay.
Now, mind you, I have NOT been able to find a repair/service manual for the car, so I could not tell what relay did what?
They were working on the car, while I was in my home searching for still other possible solutions, and then they started it and it was running...!
What they did, was, remove ALL the relays, and reseated them one by one.
The relay terminals they said looked very clean, no signs of any corrosion or residue, but not sure if possibly a problem inside the relay/fuse box/panel, with the main wiring..?
Later we shall address looking into this more.
So, thanks for the help from all involved...
I'm happier now, and will be able to drive my Suzuki Aerio again..!
Have a nice day/evening...