87 Stops abruptly after sitting for several months.

I'm about to dig into my problem but wanted to run this past the guys here on Automotive Forums. I have a fullsize K5 87 V8 w/TBFI that I let sit for about 10 months (got a new vehicle and this wasn't needed). Now I've decided to dust her off and get it ready for the winter. I periodically would run the engine for about 20 min (maybe about once a month) and that was all. Yesterday, I tried starting but it needed a little coaxing (peddling) for a sec but it started up. Everything was fine for about 10 min then all of a sudden the engine increased it's idle speed to about 1000rpm (up from about 750). Nothing out the ordinary other than that for the next 3-5 min. Then I decided to get inside and tap the pedal to see if it would idle down. As soon as I touched the throttle, it just went dead (like I turned the key off)... no roughness or anything out the ordinary. I tried restarting but no go... didn't even consider starting up for me... not even a cough.

I shot a burst of starting fluid down into the throat of the throttlebody (with the butterfly open). Tried starting again... no go... just engin spin. I let it go until this morning... as soon as I tapped it, it started right up. Then it basically went through the same thing it did yesterday after it was warmed up... it just stopped running. I left it alone until after lunch and it started right up. I hesitantly put it in gear and spun around the block and it seemed good. I left it in the driveway running and after about 5 min or 10 min... it just died. I turned of the iginition and I've left it alone until I figured out what's going on. I apologize for the detail here but just want to get some opinions.

Here's the resolution to the problem:

Replace the Coolant Temp. Sensor

Yes, the coolant sensor was the fix. The ECU doesn't lie... but you know how most like to defy or attempt to defy logic. :nono:

Everything is good to go now.:grinno: