Overfueling (Poor MPG)

[DaNnY_LaD]

Ive just got 220miles to a full tank all motorway driving all at 70-80mph..And around 43miles to 10quid...

My beezas had new MAf and Cts...Is there anyway i can log the fueling ?Could my lambda be knackered..

 

[Myki da Pyki]

Yep id be looking at lambda's now mate

 

[Big_daddy]

at steady 70-80 you should get 70+

 

[DaNnY_LaD]

at steady 70-80 you should get 70+

What??

 

[Big_daddy]

What??

meaning £10 on a motorway should get around 70miles +

 

[DaNnY_LaD]

280 miles?

How much are the lamdba?

 

[ChrisCurzon]

price of lambda's from dealers.

pre cat 99.71 inc vat
post cat 123.33 inc vat

was thinging of doing mine due to overfuelling but there to expensive without knowing for sure its them.

 

[Myki da Pyki]

Lambda's

http://www.seatcupra.net/forums/showthread.php?t=154669

Or buy universal ones like i did £39 for both to the door

 

[ChrisCurzon]

was told not to get universal ones as migth not work correctly. you had any problems with yours?

mind saying where you got them from?

 

[Myki da Pyki]

was told not to get universal ones as migth not work correctly. you had any problems with yours?

mind saying where you got them from?

Not fitted mine yet il be doing it either later or tomorrow. Read up loads about them and they are used by alot more people than you think. Seen quite a few topics of other vag sites like briskoda about them with no problems running them.

Originally bought mine from my local unipart place but then seen the exact same ones on ebay but for about 1/4 the price

 

[PhilW]

Are they universal narrowband ones?

 

[Myki da Pyki]

Are they universal narrowband ones?

Exactly the same as the one in this link but universal (i.e. co connector)

http://www.autobits.co.uk/store/view_product.php?product=15649

Bought from that company's ebay store

 

[ChrisCurzon]

keep us updated on how they are when done it then if you dont mind might be worht a try if you have no problems cheaper then dealer ones anyway.

 

[Myki da Pyki]

keep us updated on how they are when done it then if you dont mind might be worht a try if you have no problems cheaper then dealer ones anyway.

Yeh will do. This is an emergency fix for me as ive got the remap on wednesday and cant afford to be spending £200+ on 2 lambda's from the stealers. Even if they only last till i can afford to buy some bosch ones im happy with that

 

[ChrisCurzon]

well iv changed pracutaly every thing abr lambda's as having over fuelling isuse but dont want to spend 200+ if they aint the problem so cheap alternative to try would be good.

 

[DaNnY_LaD]

What Logs do i need to do to find out if the lambda need changing?

And how do i do it..?Full load? fast idle?

 

[pj1985]

220miles to a tank on the motorway isnt that bad. A steady 70mph will give good mpg but when you go above 75mph or sit at 80mph it is not an economical speed. It costs about £45 to fill the tank so 43 miles to £10 is not that bad either as its a short trip and I expect you put your foot down a little bit accelerating. Cupras are not amazingly economical especially when you start to tune them.

 

[DaNnY_LaD]

Are so aslong as my car isnt Fubbard ....lol

 

[ChrisCurzon]

As long as its not like mine danny your fine lol.

Am only getting about 190miles to a full tank and i dont boost it or go over 4k max as its wont lol.

Thats bad mpg.

 

[DaNnY_LaD]

What can cause bad Mpg apart from the heavy foot..

These are the things ive replaced new:

Maf
CTS

What else is there? Spark plugs(ik22),lambda?