What book are you getting the 194 out of? I don't think I have ever heard of fans coming on at temps that low. Our B-villes come on around 220ish.
Hmm, wait a minute, I can't remember, when the ECT is disconnected, I'm not sure if its the low speed relay or the high speed relay that comes on. Darn it. If I knew which relays were which, I could tell you how to test the circuit.
But I do know that BOTH fans come on at the same time regardless of which speed is commanded.
If you were in my neck of the woods, I could scan it and tell you if the ECT gauge is bad or anything else.
Another question, how'* the coolant level in the radiator and overflow tank?
1997 Pontiac Bonneville SEi-SCRAPYARD
2000 Chevrolet Blazer LT 4X4 4.3L
2002 Chevrolet *-10 LS Ext Cab 4X4 5.7 V8