Poor Mpg

[Jay-ZS+]

Been crawling around in the zed for the last week very rarely going above 3krpm although It come back as 19.32mpg! Its all be city driving so would be low anyway but expected to see in the 20s at least.

Going off the gauge (not the best I know) I got 70 odd miles to 1/4 of a tank than another 70 out of 1/2 a tank. Seems to drop once it gets past the 3/4 mark pretty sharpish! Got a total of 140.7miles from 33.1L thats 30p a mile.

My vis arnt working properly at the moment although keeping it below 3k that should effect it, i guessing.

Seems too low i reckon just wonder if it could be over fueling.

[ZS]

Jay, mines got similar issues...

Am going to change Spark plugs, crank sensor (due to starting issues) and run some redex through the system... then will revisit the issue incase its something stupid like that :)

[Jay-ZS+]

Yer I changed the sparks and fuel filter recently so doubt the sparks are to blame for mine. Prob a sensor of some sorts.

[Bobdope2002]

or theyre just **** on fuel full stop lol

Ahhh the joys of 40+ MPG and 72.9 a litre to fill it up

:D

[Jay-ZS+]

But I couldnt do without the power now, hence the want for a Bike ;)

[midcuk]

i constantly get 260 miles to a tank as i do the same innercity driving week in week out so sounds about right i think.

[Jay-ZS+]

Theres no way id get 260 miles out a tank! Did 140 was was between the red and the 1/4 mark.

[ZS]

190 - 200 miles per full tank to almost nothing in the tank... driving like a grandad! definetly an issue with my fuel consumption!

[Nor]

One of the o2 sensors?

[Jay-ZS+]

Yer that was my thought, wonder which one! lol

[Jay-ZS+]

Anyone recommend where to get a O2 sensor they seem pretty expensive!!
What with the ?245 tax Ive put on today could do with saving a few quid.

[Squeaks]

I just got 122miles from ?41.00 with average island driving and the odd mad moment.
Pah

[marts66]

350 to a tank....................:yoji:

[fastmike]

I just got 122miles from ?41.00 with average island driving and the odd mad moment.
Pah

Jesus H Christ :O ..... The Audi does 100 ish to ?20 :wall:

[Jay-ZS+]

I just got 122miles from ?41.00 with average island driving and the odd mad moment.
Pah

Yer well Im not far off with 140 from ?42
Hate to think what I would get if I put my foot down.

[Jay-ZS+]

Just need to find a surplier for replacement o2 sensors.

Anyone know the part numbers/ model of the sensors (manufactures not the rover part number) ?

[Nor]

You with the AA Jay? I have their breakdown repair cover and had an o2 sensor done under their warranty last year. Just costs the ?25 excess.

[Jay-ZS+]

You with the AA Jay? I have their breakdown repair cover and had an o2 sensor done under their warranty last year. Just costs the ?25 excess.

No had a dispute with them vowed to never use them again! lol

[carmadbaker]

Is the 02 sensor used throughout the rev range for fuel management then? For some reason i thought they were just for idle control? Any kv6 guru's who could enlighten us? :-D

[Squeaks]

I just got 122miles from ?41.00 with average island driving and the odd mad moment.
Pah

Jesus H Christ :O ..... The Audi does 100 ish to ?20 :wall:

I tell a lie, i drove nice and careful to work and it found quarter of a tank Lol!

so should go way over 122 now :w00t::w00t::w00t:

[Steves Cleenz]

Jay i had this problem on mine, really crap on fuel so tried an old school trick out before going down the route of changing sensors etc, undo your airfilter and put a pair of tights over it and drive for a couple of days and see what your fuel is like then, all of a sudden it went back to normal on fuel, so got the jet wash out and gave my filter a good washing, so the problem on mine was the filter was blocked

[MG ZS STE]

Jay, if youve got a duff lambda your MIL light would be on, either P0124, P0135 or P0175 or maybe even another code. one of my precat lambdas was shot from trying to start it with no petrol in. ran like shoite for 6 months till i could be arsed to finally sort it out. was returning less than 250 per full tank [to the click] now sorted back to 300+ per full tank.

Scangauge reports 15MPG inner city average and anything between 29 and 33 when you hit the A roads. So is your MIL on then?

[Huffy]

350 to a tank....................:yoji:


420...... open up and suck on DERV! lol

[Dave MGT]

Jay I doubt ur sensors are at fault. If your vis isn't working that will give you poor mpg. I saw u in it last sat afternoon driving into marks+spark up by me. It's tapping very loud! Is that ur vis or a tappet?
As mentioned worth checking air filter as well

Some of u guys are getting bad mpg! I get a 155 miles on ?30 (at 1.25.9per litre)

[marts66]

420...... open up and suck on DERV! lol

:rant:

[Jay-ZS+]

Jay I doubt ur sensors are at fault. If your vis isn't working that will give you poor mpg. I saw u in it last sat afternoon driving into marks+spark up by me. It's tapping very loud! Is that ur vis or a tappet?
As mentioned worth checking air filter as well

Some of u guys are getting bad mpg! I get a 155 miles on ?30 (at 1.25.9per litre)

I spotted you on your way out. Think it's a tappet Dave as it stops when warm, gonna put some derv oil in it next week in hope of sorting that out. Will sort the vis out as well.

Gonna replace the hose to the air filter so will clean it at the same time.
Also got a sheddist kit to go on so will be busy.

[fastmike]

If anyone wants to feel depressed , think of this...... 120 miles on ?40 of fuel = 3 miles per pound in fuel alone
100 miles on ?20 of fuel = 5 miles per pound...... Now that to me looks rediculose , where does the government think we'er going to get the money to run a car ?

[carmadbaker]

From our lower tax duty lifestyle of course :strongbench:

Oh no... wait.... o yeah thats right! They slip us poor hard working ones a good hard length at every opportunity :( :hump::hump:

They are making it impossible to own a car these days

[stamford]

My zed still gives 320 miles to a tank with mixed driving. It's better on fuel than my TD5 Discovery.

[Squeaks]

Mine has found even more fuel :D just over quarter of a tank now.

Hmmm must have had lead foot syndrome lol

[SticklesMickles]

Ive just filled up the tank again, around 282 miles driven and 53 litres put into the tank, its about average for my 180 to be honest with the driving i do, i do throw my foot down a bit once on the A19 :-)

[Dan1971]

Fuel consumption .....

:rofl:

[midcuk]

Theres no way id get 260 miles out a tank! Did 140 was was between the red and the 1/4 mark.

doh looks like an issue with mine then although all seems to be well ?
maybe a clean of the induction kit as a first start (hasnt been done since i put it on :(.
what fuel does everyone use? i only ever use vpower

[Squeaks]

Still going on my ?41 worth over 150miles now and still got some left, been driving it like a granny the last few days.

[Jay-ZS+]

Well Ive got a new breather filter and piping to fit along with a cleaned filter, so will see what difference that makes!