Having Trouble With 99 Cavalier, Can Someone Please Help

The fact that you have worked on this already, mostly removes any hope of help for you.

Take it to the shop.

If you have no power to the ignition module, it would make sense to check the wiring/breaker/fuse to the ignition module.

Best option would be to melt the car down to it's base minerals and sell the weight as scrap metal.

I have managed to eat every day by repairing other people's vehicles. There are a few absolute rules to live by in the repair business.

1) The last person that touched it screwed it up.

2) What has changed since it last ran correctly.

3) If it ain't broke don't fix it.

If you are sure it has no electric spark, check all of the electrical connections you disturbed.

Why did you take it apart in the first place? Was it cutting out? Stalling and then not restarting? Did you rebuild the motor because it had a bad ignition switch?

Get a wiring diagram, and follow the start and run circuits. The coil pack or distributer should be live in start and run. Good luck.

Do you have a repair manual for your car? If you don't, invest $20.00(us) and buy one. Without one your lost from the get-go. Most decent manuals will have troubleshooting flow charts. You will need some basic tools to do the troubleshooting, like a test light, volt/ohm meter for electrical. As other's have said, it could be a blown fuse or fuses, Most ECM's are power by 2 or more fuses. Other than that, you may need to replace the ECM. Maybe you and ullyceese can get together and trade parts and figure out what's broken between the two of you

How is the ignition module grounded. Does it use the head as the ground point. Is the head properly grounded to the engine block. Was there some sort of metal strap you forgot to put back on. I assume you have a multimeter. Check the basic stuff.