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Regulator


Kris88m

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Are you talking about the top one or the bottom one?  There are two types of the top one, one with two inlets and one with one inlet, depending on year of car.  The top one is the fuel pressure regulator (FPR).  Yours looks like a 1976 FPR.  The bottom one is the F.I.C.D.

 

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It is a vacuum operated device that pulls the throttle open a bit to raise idle speed when the AC compressor is working.  Also called the fast idle actuator.  If you don't have working AC you don't need it.

 

image.png.90ad8326b83af9464c4378409aedfdc9.png

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Ohh okay! That makes sense. 

On 7/20/2021 at 2:08 PM, NewZed said:

Are you talking about the top one or the bottom one?  There are two types of the top one, one with two inlets and one with one inlet, depending on year of car.  The top one is the fuel pressure regulator (FPR).  Yours looks like a 1976 FPR.  The bottom one is the F.I.C.D.

 

image.png.d0be3797ed2b12a927c62a65597ac5ca.png

 

2 hours ago, NewZed said:

It is a vacuum operated device that pulls the throttle open a bit to raise idle speed when the AC compressor is working.  Also called the fast idle actuator.  If you don't have working AC you don't need it.

 

image.png.90ad8326b83af9464c4378409aedfdc9.png

 

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