Quote Originally Posted by spikeygg View Post
I just did the plug swap and it started right up.

So, I think that means the cold start valve is good, right?

After that I tested the pins of the TTS to engine ground and found that one pin was about 30Ω and the other was 0.2Ω -- both of those values sound right. The electrical clip that clips into the TTS sensor is badly damaged, I wonder if that clip isn't making a good contact to those TTS pins...

What else can I check?
There are connections also in the bulkhead connectors. My car had a bad bulkhead connection that made the CSV fail. I would suggest you use an ohmmeter to verify all the connections from the CSV to TTS are good. The bulkhead used a few pins just to join some wiring with a jumper on the back side of the bulkhead. Those are not documented.