Where can I find the Fuel Pressure Regulator Test Procedure? If there's one for the FPD as well, I'd like that as well. Getting ready to service the injectors and don't want to waste $200 if I don't have to. The car is an '87 944 NA.

 

I have not been and looked but I believe about everything on these kind of things are over at Clarks Garage.

 

The only way I know is to hook up a fuel pressure gauge to the test port on the fuel rail.

 

I just ordered a fuel rail plug from the P dealer so I can drill and tap it for a test set up myself actually.

 

I know about the fuel pressure guage but I need to know if there's any process after the guage is attached to see if it 's functioning properly.

 

Found all I was looking for in Clarks Garage.