running abit lean

[sharki786]

my mk3 gti 8v AGG is running abit lean how could that be adjusted?? or it cant?

thanks all

[Khare]

What makes you think its running lean mate?

[Wayne]

my mk3 gti 8v AGG is running abit lean how could that be adjusted?? or it cant?

thanks all

As Khare said what makes you think it is running lean, no way of adjusting it I believe.

[rubjonny]

as above it cant be adjusted, all ecu controlled. main suspects if mixture is wrong is ecu temp sensor and/or lambda probe. as above again, what are the symptoms 

[DubSociety]

If its a bit juicy on fuel, the only way you can sort it out is:

A. Service it:- Plugs, Oil/Filter, Air Filter,

AND/OR

B. Turn on the trip meter, find out how many miles you do with a tenners worth of fuel for example, and then keep an eye on the trip counter so you know how many miles you got left before you have to visit Mr BP or Mrs Esso again. <-- this way you'll stop doing extra miles, and just generally be more careful with driving around for no reason ...

[sharki786]

well it smells lean (you can smell the petrol( like yesterday it was coldish and i started the car and there was steam but it smelt petroly, it does under 100miles on £20 vpower. im getting about under 25mpg its 8v agg gti i do give it abit, also a friend of mine has a snapon diag and it blatently came up showing lean

[harlemex]

What is your temperature gauge reading?

[sharki786]

70-90 depending if im stuck in trafgic or driving khare did say its thermo stat. is there a way of doing the termo without taking timing belt of?? wayne did say that you remove the alternator but someone said you you cant do it like that as the water pump gets stuck? or have i got it wrong?

[harlemex]

Yes you can do it without touching the cam belt. And you do need to remove the alternator and slacken the power steering pump and push out the way abit. All for easier access to get to the flange on the waterpump. Tis a tad awkward but still do-able with some patience. I think it could be why you are using to much fuel. The car will run rich if the engine is running cool. 

[dom]

Yes you can do it without touching the cam belt. And you do need to remove the alternator and slacken the power steering pump and push out the way abit. All for easier access to get to the flange on the waterpump. Tis a tad awkward but still do-able with some patience. I think it could be why you are using to much fuel. The car will run rich if the engine is running cool. 

+1 sounds like your culprit!