Poor fuel consumption and hissing noise.

[ubercooch]

Hi all,

I've got a problem (maybe two), I've done some searching but don't really know where to start.

Firstly - I've got a VT Wagon and the fuel economy is bad, 350-400 from full when driving very conservatively.

Second - there's a hissing on acceleration.

Third - I may be imagining it but I think there's a faint wiff of fuel with the ac/fan on

I'm thinking the two/three are linked but I'm not sure.

I've found people mentioning Oxy Sensors, Vac leaks and Purge hose but don't know where to start, I'd rather do it myself as funds are tight at the mo' so am wanting to start at the easiest, cheapest and most likely cause.

Whatya think?

Cheers

[VT-565]

Check all your inlet piping
Check all vac hoses