19 volts on the battery

Bill , if you just painted the engine bay, I would say , unless you scraped paint , that there is not sufficient metal on metal for the VR to have a good ground. sometimes I like to slightly over tighten the mounting bolts so the threads mesh real well. I also like to scrape any paint between the VR and the firewall (inconspicuously), as well as around the bolt holes on the VR. I would check all the grounds and scrape where necessary, battery to block, block to firewall. you are looking for around 13.8 to 14.2 across the battery , and 0 to 0.2 from the VR to the battery (ground) when the car is running.