1997 Saturn SW2 (HELP)

[Vellyn]

The car just recently got a new battery (for the 4th time). Now has a new alternator (2nd one so far), a new starter, a new master cylinder, and new bolts for connecting the cables into the battery. As well as a new air filter. And new spark plugs.

Just recently, for no obvious reason, the lights started going dim inside the car, then flickering, then the gauges started going haywire, the battery light was constantly flickering. The rpms went up but the car was barely getting up and going (basically like it was being pulled backwards while you are trying to go forward) shifting hard at times.

The alternator is brand new, just replaced. The battery is brand new as well. We have new spark plugs and air filter... all the fluids are at the point they need to be...

What is going on? We really don't want to sell it but we are stumped as its electrical or not? Bad ground? A short? Fuse? Relay? Sensor?

Open to anything we can test and/or try at the very moment. We need every bit of advice possible!!!!