The data link connector (DLC) is located on the drivers side under the dash, but these vehicles have their own OBD system which can be accessed with use of a test light or a VOM (analog, not digital). Good luck!
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
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.
fuel pressure regulator is on the right end of the rail.
Closest to the passenger side
Plymouth does not use inertia/reset switches. The fuel system is computer controlled with relays.
I would think that is logical.