Farmont AU II Just Stopped Running on Petrol

[RENOCASINO]

Hi guys I have this Fairmont 2000 AU II that just stopped running on petrol.

It has Dual Fuel with an IMPCO system 200 mixer 3 years old which runs Perfect ...except at start up which back fires 30% of the time.

In saying this all pointed to a New petrol pump and filter as the Impco system
Needs petrol to start the motor propley which should also stop the back fire you would think, and if not add new leads and coil pack.

I brought a complete new VDO fuel pump thanks to irdonn link on the Forum
and also a new Ryco fuel filter and the same time changed the plugs but used normal range which had before

The pump is now working you can here it coming in and out when it’s on gas
Like it should, there are still a couple of back fires but not as much
Once again the car runs perfect on the gas with a little bit less back fire
than before But at start up only other wise its GREAT

THE Problem is it won’t run on PETROL
I know the pump is running
Petrol comes out of out let when cranking
When I take it for test run and go from Gas to petrol it Dies
Sometimes it might start but sounds its on 2 pistons you can hear the Pump
then it dies after 15 sec

I just don’t know what I can do anymore
I wonder if any one else has had this problem with the AU II ... Please