Astronomical Fuel Usage

Now I know it's a V8 and thirsty but I estimate it's currently running between 2 and 4 mpg! It's a 3.5Ltr Auto EFi

Put it this way, you need a gas mask to stand anywhere near the exhaust. It has got LPG which comes out at about 11 mpg, but petrol is so much thirstier.

It runs fine on petrol other than the starting point below, and it seems to have plenty of power more than LPG anyway.

When starting it's a bit strange.... If you treat her like a diesel and wait a few seconds after turning on the ignition then she starts fine on petrol. Whereas if you just jump and turn the key straight to start she fires and then cuts out then it takes about 15+ seconds of turning her over till she starts.

Has anyone got any ideas, or obvious pointers I can't afford an ESSO tanker to follow me everywhere!

p.s. I can't smell petrol anywhere!

Cheers,

Ian.

Sell it and buy the diesel

check yer fuel pressure regulator for a knackered diaphram

Cheers slob,

This was my next thing to check! I just filled up the petrol tank to the brim (after re-mortgaging the house) and the starting problem I mentioned went.

Is there an easy way to check the fuel regulator? Is it possible to remove without removing the plenum and ram housing?

Cheers,

Ian