The temperature sensors I need for my project are readily available through NAPA and elsewhere. It’s cheaper to get them there than on EBay or elsewhere. The GM Part number is 15326386. They are $11.99 each if I want to wait for them to be shipped in or $12.99 to pick them up today. I will need two. One will be a coolant temp sensor and the other an ambient air temp sensor. I can get the connectors for these sensors with GM part number 12162193 and 12103881 (first is connector, second is terminal). On EBay the connectors are about $2.50 each and the terminals are $5 for a pack of 25.
The personal and professional website of Douglas Van Bossuyt