jffsmuffn3

My newly rebuilt RX-7 was running fine and the other day stalled out and wouldn't idle right, when I let it die it wouldn't start untill it cooled off. I've been reading all kinds of posts in archives relative to this problem and some tricks to fix it with resistors and unplugged wires at the ECU but nothing about what sensor is causing it, any help?? Starts fine cold, AWS seems to work, correct timing, no vacuum leaks, I'm thinking Water Thermosensor or Airflow sensor and don't have a code scanner for a car that old. Any Help? Thanks, Jeff