Lesabre wont start

I have posted a few times on this and tried a lot of different things. Here is where Im at now. I replaced the starter and battery, cranks great now. Right after I replaced it, the car fired up and ran great, ide was good and acceleration was good, ran great for something that was sitting for a few months. After it ran for 20 min or so, I turned off the car, went to restart it after a few minutes, now Im back to where it was, no spark. Heres what has been replaced: New crank sensor, starter, battery, O2 sensor, ECM, ICM (both ECM and ICM are tested and work on another car) Right now, it seems to me like a heat issue, seems once the engine is warm, it doesnt want to spark. I let the car sit a few hours and tried again, wont start. Ill check in the morning after it completly cools. Any one have an idea?

forgot to mention something, I replaced the mass airflow sensor about 2 years ago because of a problem with it stalling, is it possible that the MAF could be bad? I might still have the old one somewhere.

I have posted a few times on this and tried a lot of different things. Here is where Im at now. I replaced the starter and battery, cranks great now. Right after I replaced it, the car fired up and ran great, ide was good and acceleration was good, ran great for something that was sitting for a few months. After it ran for 20 min or so, I turned off the car, went to restart it after a few minutes, now Im back to where it was, no spark. Heres what has been replaced: New crank sensor, starter, battery, O2 sensor, ECM, ICM (both ECM and ICM are tested and work on another car) Right now, it seems to me like a heat issue, seems once the engine is warm, it doesnt want to spark. I let the car sit a few hours and tried again, wont start. Ill check in the morning after it completly cools. Any one have an idea?
Sounds like your "ignition module" needs to be replaced. which explains the reason that you arent getting a spark. Good luck!

I already replaced it, thats ICM I mentioned