92 Blazer V6 Vortec. Starts great when cold and after it has been shut off for a few minutes. But takes a lot of cranking before starting if cooled down for a couple of hours. Put on computer. Everything ok. Fuel pressure checked - ok. Put in temperarture sensor. Made no diference. Advice appreciated?

 

Might be hot start, if it sits for a few hours it will be cold, or cold enough for the solenoid to engage. This is a VERY common problem infact its a trademark problem for GM's.

I used a remote solenoid( think ford) to cure my hot start problems.

 

I would suspect the ignition module.