fuel pressure regulator is on the right end of the rail.
Plymouth Laser was created in 1990.
Is It a turbo car or not?
Could be an auto or a manual.
You need a timing light
Bad fuel pump, blown fuel pump fuse, bad fuel pump relay, clogged fuel filter, possibly defective fuel pressure regulator, and in rare instances defective computer.
1-3-4-2
Fuel tank capacity: 15.9 gal.
The 1990 Plymouth EGR valve is located on the outside of the air cleaner housing. The EGR valve can be found on the back side of the housing.
The best place to find the diagram for the fuse box on a 1990 Plymouth Laser would be at the local Chrysler dealer. They carry archived manuals and diagrams going back many years.
The engine computer handles the voltage regulation duties.
Closest to the passenger side
It is in the throttle body.