starting problem with pontiac6000

I have 1991 pontiac6000, 3.1 litre, v6, automatic, A/C. Won't start when engine is warm. Replaced ignition control module, crankshaft position sensor, fuel filter. Will shutoff the engine, and will 3/4 hours or cooldown engine before restart, only thing helped releasing gas pressure. But that is just for 10 to 15 minutes.

Any suggestions

Originally Posted by My Sixth Gear http://staticaf.com/vbulletin/images/buttons/viewpost.gif (http://www.automotiveforums.com/vbulletin/showthread.php?p=4735478#post4735478)
I encountered a similar problem with the 3100 where the cylinder six fuel injector was shorted and only had a 1 ohm resistance value, this caused all the current to go this injector and the other two injectors on the same bank weren't firing causing the engine to stall. Try checking the resistance values of the injectors, all should be around 6 or so ohms.