My 1994 Buick LeSabre has no electricity going through the wires that are supposed to provide electricity to the fuel injectors. Tested those wires with a "noid test light" & the light didn't light up. What could be causing this & how do I fix it?

The voltage for fuel injectors go hot with the key on. The computer switches the ground on and off, check voltage and ground.
If the computer doesn't ground the fuel injectors, you'll have voltage on both legs.
If computer doesn't see rpm signal, it won't ground the fuel injectors. If no rpm signal check the crank sensor and ignition module, plus wiring circuits. Don't replace anything unless your testing points in that direction.

Check these items. - Clogged or faulty fuel injector (s)
- Intake air leak
- Fuel injectors harness is open or shorted
- Fuel Injectors circuit poor electrical connection
- Ignition coils harness is open or shorted
- Ignition coils circuit poor electrical connection
- Insufficient cylinders compression
- Incorrect fuel pressure

replace the injector as it is probably shorted out internally

Probably a faulty injector returning no reading through the system.

Possible Crank sensor, or IGN module ? Should be put on a scan tool to troubleshoot....

If it will start, you can drive it. Some computers will not fire the injectors without a signal from the cam sensor, but many will default to data from the crankshaft sensor when the cam sensor fails. This may result in reduced fuel mileage, but will not hurt the car. Basically, the injectors are spraying at a less optimal moment. OK?

Try a crank sensor yet?

do you get fuel pump pressure, should be about 40 psi what about compression and spark on a saturn would be stronger due to many reasons one of which being different voltage of coils

YOU HAVE DIRTY FUEL INJECTORS.THEY ARE STICKING OPEN. FLOODING THE ENGINE. WHEN YOU TURN IT OFF.FILL GAS TANK UP.PUT A BOTTLE OF PRESTONE FUEL INJECTOR CLEANER IN GAS TANK.

How's your coolant level? The intake manifolds on the 3.8L engines are prone to breakage at various locations causing coolant leaks into the crankcase and vacuum leaks on intake ports.Removal of the upper intake manifold will be necessary for inspection. Also, check for vacuum leaks at various locations on the outside of the intake manifold using WD-40 or brakeclean/carburetor cleaner sprayed hoses, non-electrical components, at the base of the manifold etc. As for a faulty injector, not likely but if you suspect one you can always swap the suspect injector with another on the engine and see if the misfire follows the injector. Just be sure to relieve the fuel pressure before servicing. Hope this helps.