Have 1998 safari 4.6 throttle body cannot find fuel pressure regulator

Astro, Safari 1997-2005

Fuel Pressure Regulator - Removal & Installation

1. Disconnect the negative battery cable.
2. Relieve the fuel system pressure. Refer to the fuel system relief procedure in this section.
3. Remove the upper manifold assembly.
4. Remove the fuel pressure regulator vacuum tube.
5. Disassemble the fuel pressure regulator snapring retainer.
6. Remove the fuel pressure regulator assembly and the O-rings. Discard the O-rings, filter and back-up O-rings.
   
   
   Fig. The fuel pressure regulator is retained by this clip
   
   
   
   Fig. Replace the O-rings whenever the fuel pressure regulator is removed
   

1. Lubricate the O-rings with clean engine oil and install as an assembly.
2. Install the fuel pressure regulator, attach the vacuum tube.
3. Install the snapring retainer.
4. Install the upper manifold assembly.
5. Connect the negative battery cable.

1. Relieve the fuel system pressure.
2. Remove the upper intake manifold assembly.
3. Remove the fuel pressure regulator retainer clip (5).
4. Pull and twist the fuel pressure regulator (6) in order to remove the fuel pressure regulator from the fuel pressure regulator housing using a shop towel to catch any spilled fuel.
5. Remove the regulator seal lower O-ring (3).
6. Remove the regulator assembly filter (2).
7. Remove the regulator seal upper O-ring (1).
8. Remove the regulator seal backup ring (7).
9. Discard the O-rings.
   
   
   Fig. Exploded view of throttle body assembly (click for zoom)
   

1. Lubricate the new O-rings with clean engine oil.
2. Install the regulator seal backup ring (7).
3. Install the regulator seal upper O-ring (1).
4. Install the regulator assembly filter (2).
5. Install the regulator seal lower O-ring (3).
6. Assemble the regulator (6) with the vacuum tube pointing down into the regulator retainer clip.
7. Install the fuel pressure regulator retainer clip (5).
8. Install the upper manifold assembly.
9. Connect the negative battery cable.
10. Inspect for leaks.
    1. Turn the ignition ON , with the engine OFF , for 2 seconds.
    2. Turn the ignition OFF for 10 seconds.
    3. Turn the ignition ON , with the engine OFF .
    4. Inspect for fuel leaks.
11. Install the engine cover.

Fuel pressure regulator is located in the upper intake platinum as a part of the SCFI system. Your gong to have to remove the upper intake platinum to get to the SCFI and the fuel pressure regulator will be at the base on the front side.
Simple replacement, but just lots of things to remove to get to it. Take lots of picture to use as reference so you can put everything back together again without any issues.
Thank you for using fixya and good luck. #14 is the fuel pressure regulator on the SCFI.
. http://www.compnine.com/index.php?u=1&year=1998&artnbr=TX03-009&artsfx=NULL&supplgroup=NULL&catcode=53M&modelcode=M&makecode=LG&modelseries=NULL&uid=1&modelid=7023&capuid=1&majorgroup=03&grouptype=B

http://www.compnine.com/index.php?u=1&year=1998&artnbr=TX03-011&artsfx=NULL&supplgroup=NULL&catcode=53M&modelcode=M&makecode=LG&modelseries=NULL&uid=1&modelid=7023&capuid=1&majorgroup=03&grouptype=B