Chrysler Repair: 1996 3.3L: no start when warmed up, throttle position sensor, 1996 chrysler concorde

Question
I have a 1996 Chrysler Concorde 3.3L That once it is warmed up if you let it sit for a half hour or longer wont start unless you hold the key down let it crank for a while and press the gas pedal. It starts fine cold. I have replaced the plugs and wires and cleaned the throttle body and Idle Air Control Valve. I am thinking it could be the throttle position sensor but not sure. Any help would be appreciate.  

Answer
Hi Justin,
If you haven't tried to see if the engine controller has stored a fault code that would be the first thing to try. Turn the ignition switch 'on-off-on-off-on and leave on" doing that in 5 seconds or less elapsed time. Then watch the check engine light which remain 'on' to begin to flash, pause, flash, etc. Count the number of flashes before each pause. Then repeat the process to assure an accurate set of flash counts, then write back and tell the counts in order of appearance. I believe we'll get a useful clue to this problem.
Roland
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