1aauto.com carries them for your vehicle. I included a link below to them for you. Hope this helps you out.
The voltage regulator is built into the Alternator!!
The cost isin't to great, but, the pain comes with the installation. Drilling the rivets,removing the window,removing the window regulator,then the window motor and then replacing it all back to where it was. Expect a few cuts and scrapes....
Remove the fuel rail
Try an auto-body shope like Macco. I priced them there
The 1993 Chevrolet Cavalier voltage regulator should be mounted on top of the alternator. The alternator will be on the front of the engine.
Autozone or Ebay
autozone had one for me
Yes. They are the same from 1987 until 1990
Usually about $40-50
No
The stock horsepower is 140 for the 3.1L engine.
Stuck fuel injector or busted diaphragm inside the fuel pressure regulator.