Where is the fuel pressure regulator on a 1988 oldsmobile cutlass cierra 4 cylinder engine?

Answer 1

It is integral to the TBI unit on top of the intake manifold. Lift the air cleaner off and you can see it out the back of the TBI above where the fuel lines are coming into the unit. To repair it you have to buy a kit that comes with all the gaskets and reg parts. The vacuum supply to it is through the body of the TBI itself. Good luck.