Fuel delivery Problem

If you do end up replacing the pump have a good look in the tank, to see if it's full of muck, you might have to clean out the tank like I did recently, if you have to remove the tank, there is a trick to it. But we shall worry about that if it needs to happen. I can giude you through it.

Slack back the union on the fuel filter & see if you have fuel there.
Go at it armed with rags around it, as it should run at high pressure & note, I said slack it, not undo it, as if it still functions, petrol will piss out in profusion.
M

Or if your in Melbourne I could perhaps bring my fuel injection system pressure test kit around a test it properly ans safely.

Yes, several times.
Only relay mentioned for MGF Mk2 is the Engine Management Relay Module and as everything else it controls works I doubt it is that.
No mention of any fuses at all.
Relays located in the back panel only show on the MGTF section.

Unfortunately I'm in Perth. but thanks.
You don't happen to know where the Relay is located, or maybe it does not have one?

Yes, tried that. No fuel

The relay module you seek is hiding behind the bracket that supports the engine ECU in the engine bay on to LH side.
It's probably easier to diagnose the relay at the fuel tank unit, beside the engine cover (under the dead dog) there is another circular cover with 4 screws securing it. hiding under this is the tank unit, unplug the electrical connector and with your multimeter or test light put the + probe into the plug terminal with the White/Purple wire and the - probe to the terminal with the BLACK wire........if you have power all is probably well with the relay and earth header ( I say probably with no load under this test you may get a result but under full load a poor connection may fail )
Now if you get a poor result, you need to check the earth header  to do this take your - probe and earth it to the car's chassis and place your + probe to the terminal of the WHITE/PURPLE wire of the plug.......if you now get a good result you can suspect the earth header as your problem.
If you have power at the WHITE/PURPLE wire you should have power to the fuel pump.
The GREEN/BLACK wire is for the fuel gauge.
Now connect 12volts + to the terminal on the tank unit (where the WHITE/PURPLE wire would connect) and earth to the terminal (where the BLACK wire would connect) now see if it is pumping fuel....if not suspect the pump
As your car isn't a TF, don't waste time looking for that fuse 23 previously mentioned, it's only relevant to TFs

Now let's assume that you've decided the relay is OK and you suspect the pump itself.
You need to unplug the fuel lines and then remove the big collar nut that secures the fuel tank unit, once you start to withdraw the unit you will find the float unit for the gauge won't let it come all the way out, there are a couple of screws to remove securing the float assy to the tank unit to allow the tank unit to be fully removed from the tank.
Once out check the the 4 wires in side the tank unit, the RED wire is the pump +, it's companion BLACK wire is the Pump -.
The BLUE wire and it's companion BLACK wire are the for the gauge
Also check all the terminals in the tank unit are all OK and not broken or corroded.
If all that seems well, replace the pump!
 

Thanks Cobber, most thorough response for me to follow through so will print out. Due to an upcoming trip in my Motorhome over East shortly it will now have to wait for my return next year.
I will post my response then, once again, thanks.

OH and don't dry run the pump!

Toyman wrote:

Unfortunately I'm in Perth. but thanks.
You don't happen to know where the Relay is located, or maybe it does not have one?

Fuel pump relay is part of Engine Management Relay Module. This module consists of 4 relays put together in one box and is located at the rear of the engine ECU. One of these 4 relays if fuel pump relay. There is no separate fuel pump relay on your car.

Yeah.......I probably should've mentioned that!

Cobber, I noticed your answer about the fuel pump.  I am searching for any details about the fuel pump and have a Mike Satur high capacity fuel pump that I am going to fit as the original pump appears to be faulty.  the question: have you had any experience dealing with the high capacity fuel pump?  Should I fit a fuel regulator?  Mike appears  to be on holidays at the moment and is not answering emails.  MGTF 160 (2002).