Las vegas heat has been giving me some problems with my KA-e

[alfy_sauce16]

I've been trying to read some other posts to see if they could help me find my problem buy have not been that helpful.

Well here's my problem. As soon as it started getting hot here in Las Vegas NV my 1990 240sx single cam has started giving me some problems. I've been driving it all winter long and it has been driving fine. The case is that after i run my car from here to work or school and turn it off and it doesn't want to start up. it cranks but just sounds like its flooded or something so i have to wait around an hour or so to get it started again. Idle is around 900 rpm which is not good at all. I cleaned my MAF but didn't really help much. I thought about the FPR, maybe an O2 Sensor, or the TPS. Don't really want to buy all these so i would appreciate the advice.

[alfy_sauce16]

I have also taken off my EGI relay and cranked it a couple times and then plugged it back in and started right up.