stratus wont start?

I have a '97 stratus that will start and run beutifully, just got done doing a head and timing belt job, After driving the car for any distance it will not restart once it is turned off, had these symptoms before head job. It seems to have plenty of spark and will restart after it sits overnight
Any suggestions would be appreciated.

Check the fluids levels. the coolant specially. Might be overheating or not. Check the charging system.

I have the 96 doge stratus and have same problem?

Usally in morning when is little cold it wont start. The engine try to start up. Then when the day gets hoter it starts up fine around noon. This happens everyday...

There is sparks, and fueal is good and NO engine lite comes on.

I dont no what is it or what to do???

I am assumeing its the computer or some air sensior or something.
Also does anyone how to read the error code is this car??