crap mpg

[liam_b]

i ave a 1.1i saxo 97reg well last night i broke down ran out of petrol i put a tenner in the tank last night i used to get 50mpg. last night i got 30mpg i changed the spark plugs and leads last night as i fort that might giving me shit mpg but its made it worse why's my car being so crap on mpg? rep waiting people

[Scattle]

Could be your 02 sensor or lamda sensor needing a clean, possibly the way you drive, less high revving better mpg, also check your tyre pressure this can sometimes cause crap mpg, hope it helps.

[vidal]

If you've run out of fuel you may end up having to clean all the injectors and fuel lines, some of the debris in the bottom of the tank can be sucked through when the float is right at the bottom.

V.

[vtrchris64]

If you've run out of fuel you may end up having to clean all the injectors and fuel lines, some of the debris in the bottom of the tank can be sucked through when the float is right at the bottom.

V.

isn't that what the fuel filter is for?

[GRAHAM2000VTR]

Yes But When Was It Last Changed How Much Crap Has Gon In It Since Last Chanhed Always A Easy And Cheap Option To Try First

[liam_b]

whats the best way to clean the lamda sensor? am driving the same was i used to prob less revs than i used to will change the tyre pressure later but i cant see that nerly halfing the mpg any other ideas?

[SaxoJamie]

You would be suprised how tyre pressures affect MPG. I used to fill up with £25 of petrol, driving from Brighton to Eastbourne 4 days a week. My car used to rip through petrol until I checked the tyres which badly needed pumping up lol

[liam_b]

well its geting worse im geting about 20 mpg now tyer pressers are ok could it be the o2 senser? need help asap lads as im going thru so much petrol and i gotta go for a long drive tongiht

[vidal]

If the ignition checks out, lambda sensor is OK and there are no major modifications to the engine, are all the spark plugs tight, a loose plug can let extra fuel into the cylinder. Is it possible that there is a leak in the fuel sytem?

Have the emissions checked and see if it is running rich. Why not get a competent mechanic to do a service.

V.

[nazz1]

a small hole in the tank

[VTR_Superstar]

If you've run out of fuel you may end up having to clean all the injectors and fuel lines, some of the debris in the bottom of the tank can be sucked through when the float is right at the bottom.

V.

I never get this problem... Half a tank is my empty... £25 tops it back to full :y: :y:

[SaxoJamie]

Is it running rich? Are there any mods done to the engine at all?

[liam_b]

there are no mods to the engine completly standerd is the last 8 months this is what has been done to the engine.

engine oil' gear box oil 'new clutch'fual air and oil filters changed sprak plug and leads changed' cam belt and Thermostate changed

welll i think my cat has gone because the car is poping and cuple weeks ago now n then i could smell egg but would i broke cat half the mpg and makes the car want to stall when driving at low revs. the car idels fine too

[liam_b]

bumppp

[Barry123]

where do you drive?