1990 Chevy Lumina !990 Chevy Lumina stalls out when it gets

The crank sensor has already been changed. Yes I have spark when its a no start. Do you have any other ideas. I really want to get this car running right.

The fuel pressure has already been checked. It is good. The injectors have been cleaned. The thing is that as soon as the fan starts to kick on, the car dies out. Then I have to wait for the car to completely cool downand then I am able to start it back up. I am still getting the coolant sensor troublecodes. I really need some help!

Okay, It's me again. Here is what I did. I have the battery hooked up. I have the ECM hooked up. I left the coolant temp sensor unhooked. I am still getting a reading of #15 on the troublecodes but I am sure that is due to the sensor being unplugged. The car started right up and continued to idle for about 30 minutes. I turned it off and it started right back up. I am afraid to try to drive it anywhere because I don't know if I will damage it because the sensor is unhooked, although both fans are constantly running. I did however, drive back and forth in my yard with no problems. Please get back to me ASAP and let me know what you think. I sure hope that this helps!

Happy Thanksgiving! Just wanted to run this past you. The car quit running so well with just the CTS unplugged. I had read something about putting a paperclip into the connector sockets. And that doing this would fool the ECU into thinking the engine was hot (instead of stone cold) since there is now no (or minimal) resistance measured. And no additional fueling is being supplied, which was a good thing because I used alot of gas. I took the car to a shop and had them put it on their comp. He told me that it was a bad CTS and that although I had changed it that sometimes you may get a bad/new one. I already knew this to be true. So I stopped back by the parts store and picked up another CTS. After putting the new one in and changing the oil and filter because the mech said that there was fuel in it. The car still ran the same. Also during all of my reading I ran across something interesting, so I tried it. They said that a guy had simular problems and unhooked his Fuel Pump Relay and started his car. The car ran for 15-20 minutes I also tried this and it worked. Tomorrow I am going to test the wiring from the CTS to the ECM. Any other suggestions would be appriciated! Thanks, Linda By the way, yes my check engine light does come on.