No fuel supply

[Baza]

Ok here goes.

I was just driving normaly and the car started act as it was running out of fuel and stopped. I checked fuel gauge it indicated 1/2 full.

So while I was on the side of the road I checked fuel pump and I could not hear it or feel it working. So I checked the fuse nothing blown. So after 3 hours waiting for the tow truck (NOT A GOOD LOOK) I got home. Then I removed the fuel pump, And checked it by direct wire to the battery it worked no problems. I then replaced the relay with a second hand spare that I have ( thanx Russell) and still no power.

Now what I need is for the good Porsche fairy to come down and wave her magic wond and make it right, Or master Yoda to instruct me on what to do next.
Some of the suggestions I have had so far are
1) Sell it (wife)
2) use a match (brother)
3) leave it on the side of the road and hope someone uses a match (other brother)

Number 3 sounded good before the tow truck turned up

Thanx Porsche postie

[fast924S]

SO you removed the pump and attached it to a 12volt battery and you heard it mkae noise?? Or did you leave it on the car and run a 12volt battery supply to it

[fast924S]

OHHHH sorry, Now that I has read your post the second time, Just because its making a noise doesnt mean its pumping, tray attaching hose to it and pumping a fluid threw it from on contaner to the other just to make sure its flowing

[Baza]

Thats right Fast 924s I removed it from the car and hooked it up to 12 volts Then I replaced it without the fuel line turned on the power and no go no noise at all. I will test pump and let you know how it goes.

[fast924S]

Just to make sure, You do know that the fuel pump only turns on when you are cranking or runing.

You also might want to take a volt meter and see if you have power at the wires by the pump

[Baza]

Thats right Fast 924s I removed it from the car and hooked it up to 12 volts Then I replaced it without the fuel line turned on the power and no go no noise at all. I will test pump and let you know how it goes.

[Baza]

Just checked the pump and it pumps. I didn't know about no power unless cranking or running Thanx off to do some more checking Obewon

[Baza]

Thanx fast 924s Problem solved

Rechecked everything with second DME relay and alls well I also change the fuel filter while I was in there.
The match was looking good you learn something new everyday
Thanx

[SoCal Driver]

The fuel pump also has a fuse. The second set of contacts in the DME relay run the fuel pump. The first set power the DME and the injectors. The coil comes off of the ignition switch.

So you can check for voltage at the injectors and at the coil with the key on and eliminate half of the no start problems -- the DME relay or ignition switch. The other half is the speed sensors. Then there is that mysterious one third that no one can find.

[SoCal Driver]

I need to add that you can over ride the fuel pump side of the DME relay by jumping from Aux fuse 3 to Aux fuse 2. These are on the eight fuse block. Fuse one is closest to the drivers door (in the US).