Fuel pump

[porschedavid]

2003 Porsche boxster 3.2s

Car not starting intermittent fault.

Twice now when i have left car for about a week, doesn't start just turns over.

But both times it started after a while.

What i did notice on both times, was when i first tried to start it. the fuel pump did not make buzzing noise.

[porschedavid]

Getting worse just gone out to start again run for few seconds then cut out and would not start.Kept trying to start it and after 5th attempt it started.
Forgot to say its done 53000 miles.

Hopefully JFP will come back.He knows what hes talking about.Thanks

[JFP in PA]

Connect a fuel pressure test gauge to the test port on the fuel rail. You should have pressure before you try it turn the car over, as wells as when it is turning over. If you do not, your fuel pump is suspect.

[porschedavid]

Thanks JFP (Top man)
What should the pressure be

[porschedavid]

Also i need to get fuel pressure gauge.
What the thread size.
Or where can i get a pressure test kit from in uk

[JFP in PA]

Originally Posted by porschedavid

Thanks JFP (Top man)
What should the pressure be

Should be about 3.8 bar engine off, 3.3 bar engine running.

We use an Actron fuel pressure test rig here, I have not idea what is available in the UK.

[porschedavid]

Hi JFP
Do you have a picture of the fuel pressure test kit ,So i can try and get hold of one.
Many Thanks

[recycled sixtie]

I googled Actron fuel pressure test kit and got results.

[Brian Minson]

Here is how I tested my fuel pressure, and how to test the fuel pump as well.

Brian

FUEL PRESSURE TEST: https://youtu.be/hddx5Ux1v4Y

FUEL PUMP TEST: https://youtu.be/wEWepuDUes4

FUEL FILTER REPLACEMENT: https://youtu.be/N5ViSh3Gb28