The wire and plug that hooks into the flex fuel sensor were delivered today. It is a perfect match. I was under the impression that it had the metal ends that fit in the J3 plug of my wire harness but it does not. Luckily, that sonic forum provides that information so I will order the rest of the parts/tools that I will need. Unfortunately, I had to order 25 so if you need some, let me know! Only cost $14. Total cost is still pretty low.
My WAG is there was something defective from the beginning. The expense of repair at this point may not be worth it unless you need to drive frequently on icy roads. With a stick shift you have inherently better control over the car than a slush box anyways. My suggestion would be to spend the money on good winter tires instead during snow season.
My flex fuel sensor was delivered today. $35 and I bought the plug and wire leads for another $12. I still need to buy a fuel line connector removal tool for about $5 and a Male to female fuel line connector.
Once everything is hooked up, the sensor will tell the computer the ethanol content and my computer will determine the right air fuel ratio, timing, etc.