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Under the upper intake assembly
it is under the upper intake manifold, if you have a vortec engine
It is located in the throttle body.
under the intake manifold mounted to the CFI (central fuel injector)
It is in the throttle body.
This fuel pressure regulator is a component part of the SFI (sequential fuel injection) assembly, sometimes referred to as "spider". It resides inside of the air intake plenum and is accessed by removing the upper half of the intake.
The regulator is under the plastic upper intake manifold. It is in the end of the injector housing or pod.
That is were the fuel injectors are at, and the fuel pressure regulator is on the rear of it.
how do u replace fule pressure regulator in 94 blazer vortec
Need to check fuel pressure regulator, and it could be the MAP sensor making it run rich. Is the check engine light on???? If it is have engine scaned with engine scanner so you can read the codes, and see what is going on with the emissions.
on the fuel rail. depending if it is throttle body, or a vortec
Check the pressure regulator, fuel filter and fuel pump.