79 porsche 928 4.5 how would i go about measuri g the fuel pump pressur?


Asked by Nov 07, 2013 at 09:51 AM about the Porsche 928

Question type: Maintenance & Repair

How would I go about testing g fuel pump pressure. Are the special fittings for this
application.  79 928 4.5. If I spray staring fluid in the fuel distributor car runs better when
I stop it barely wants to run.  Trying to vet it right.

2 Answers


On the fuel rail there is a service port that will allow you to hook a fuel pressure guage to it

2 people found this helpful.

You might want to have the tps throttle position sensor checked are you having these symptoms it runs fine under load and at higher rpms and when you push in the clutch or remove your foot off the accelerator it hesitates or even dies

1 people found this helpful.

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