3.5 v8 excessive fuel consumption

[starky]

ok to date i have replaced
spark plugs
8 mm top gun leads
new dizzy cap and rotor
82 degree thermastat
engine temp sensor
mas air flow meter
and just thrown in a set of bosch 4 spray injectors

still getting 17-18 liters per 100km

a new issue that has come to surface is the car idles at 1500 rpm once you pull up for about 15- 30 seconds before it returns to idle

starting to get the willies here any more advise???

can some people let me know their fuel consumption they get out of there 3.5 v8's on petrol.

Cheers

Starky

[STIKA]

What sort of consumption are you expecting?

[oldmate]

My right foot is lazy.,..., so i tend to rest it on the firewall!!

There's your problem.

Those figures are about right for a heavy footed 3.5 running cheap shit ethanol.

[lucy]

I think that sort of usage is about normal. My 3.9 in a disco used the same.

[GRIMACE]

16-17L/100 is a good economy figure for a motor of this vintage. Sure there are better figures (rarely) but realistically these days anything under 20L/100 is good.

[starky]

found a link on aulro posted by "lovemyrangie"

adjusted the TPS and the MAF now i am getting 14.5 litres per hundred.

very happy now

My right foot is lazy.,..., so i tend to rest it on the firewall!!

There's your problem.

Those figures are about right for a heavy footed 3.5 running cheap shit ethanol.

This is only when off road and never use ethanol fuel.

[phippsey]

Well done mate. I would be stoked if I could get that.

So other potential Disco members aren't disappointed, I've had a 3.5 Rangie and 2x 3.9 Discos, and have always averaged 18-20L/100 on ULP, and 20-22/100 on LPG.

16/100 was maybe for highway, easy on the right foot, etc.

However, current Disco on LPG even at 22/100 is still cheap to run since gas is still around 62c/L in QLD