I have a similar problem I have been chasing. My car starts fine when the engine is cold. It runs great and idles fine. However once it's up to running temp if i turn it off and the try to crank it it turns over revs once then dies. Onceit has cooled down it cranks right up.It is not throwing any codes. Ihave cleaned the IAC valve, replaced the main relay but no change. I have read to check fuel pump, fuel filter, and fuel ECU but if my car is running good when it does crank it seems those items would be OK. Any comments or suggestions?
FYI. 93 SC 400