fuel problem

[Phii]

hey guys/gal
im currently driving a ek
i'm having a problem with petrol atm,
wen i first got the car a full tank would take me about 400 - 450km
but now i only get about 300 - 350km (cruising)
i also noticed that wen i take off my fuel cap it doesnt make that ssss noise nemore, i duno what the problem is but its killing me
can someone please help me out

thanks in advance

[TODA AU]

Check charcoal canister condition (Firewall of engine bay, below fuel filter)
Often the ported vacuum switch can be damaged on young guys cars for what ever reason. Also check VSV @ rear of intake manifold.
NB: When evaporative system is damaged or fails, the car tends to stink of fuel.

Assuming your car is serviced & tuned correctly,
More than likley, your fuel consumption problem is wheel & tyre related.
What size wheels & tyres do you have & what pressure do you run in them?

[Limbo]

have you had any mods to your car since? that might be your problem...

[ECU-MAN]

what is your air cleaner and fuel filter like, when were they last replaced,

also have you noticed your engine light on at all, your o2 sensor could be at fault and engine runs rich.

[Phii]

TODA AU - car doesn't stink of fuel, and car was serviced about 3-4 months ago,
i have fat fives on them atm running 205:55:15, i pump tyres up to about 40psi

Limbo - i don't have nefin special done to my car just cat back exhaust & airfilter, thats about it reeally, but even with these minor mods the car never used to drink that much petrol, i really dont know..

thanks alot guys but is der nefing else i should be looking at?

[wynode]

Try resetting your ECU?

[n/a]

Check charcoal canister condition (Firewall of engine bay, below fuel filter)
Often the ported vacuum switch can be damaged on young guys cars for what ever reason. Also check VSV @ rear of intake manifold.
NB: When evaporative system is damaged or fails, the car tends to stink of fuel.


more details on this?

[FLiP86]

i too seem to be having a similar problem and i've only had my car for 2 months....from when i first got it to now the fuel consumption seems to be different, althought i'm taking into consideration that i'm gettin the feel of the car n aren't affraid as much to push a lil harder on the accelerator than wen i first got the car....

[my_vtec77]

Check charcoal canister condition (Firewall of engine bay, below fuel filter)
Often the ported vacuum switch can be damaged on young guys cars for what ever reason. Also check VSV @ rear of intake manifold.
NB: When evaporative system is damaged or fails, the car tends to stink of fuel.

Assuming your car is serviced & tuned correctly,
More than likley, your fuel consumption problem is wheel & tyre related.
What size wheels & tyres do you have & what pressure do you run in them?

where are thoes place actually located, do u have photo of that,, cheerz