Fuel Pressure Regulator

[kclo4]

How does the fuel pressure regulator work on the KA24DE and what are it's common failure modes?

How can it be tested?

If it fails how will the car act?

Thanks

Pax

[gumby]

on the intake manifold there are 2 fuel lines one is the feed and the other is the return, you need to locate the return which is the bottom one or the one notcoming from the fuel filter. start you car and get a pair of needle noze pliers and squeez the return, if your engine revs up fast then you have a fuel problem, probably your FPR, if your FPR is bad i would replace it

lifted from another post