From Audi 100 to urS4 in a week

[hunker7]

Couldn't resist buying this:

[hunker7]

Weather is looking promising over the weekend, so I'll try testing all the sensors and see if any of them ia faulty .

[geneandbolly]

I'll start digging around and see how to test them all. I think Craig said there is someone in Leeds that knows his 20vT's, I see if I can put something together.

I'll hook up vagcom later today maybe, and see what temperatures is ECU seeing. Make some screenshots too.

Thanks

yup, quattrokid's brother karl knows them inside out and has owned them for many moons now. he's bound to have the vagcom thing and sure to help you find the source of the problem

funny you say that your exhaust has a particular smell to it - the fumes from my old tub are quite embarrassing when sitting in traffic - i have to put the window up!! no smoke but a right awful pong . .

[hunker7]

Start with the G62, the move on to the IAT, MAF, etc. All the info you need is here (and this is NOT the first time I've posted this link):

http://members.shaw.ca/speedtek/UrS%...ice%20Map.html

Thanks for that. My HDD died, so lost everything, I was about to ask you for the link.

[UrS4boy]

I'll start digging around and see how to test them all.

Start with the G62, the move on to the IAT, MAF, etc. All the info you need is here (and this is NOT the first time I've posted this link):

http://members.shaw.ca/speedtek/UrS%20Engine%20Bay%20Device%20Map.html

[hunker7]

I'll start digging around and see how to test them all. I think Craig said there is someone in Leeds that knows his 20vT's, I see if I can put something together.

I'll hook up vagcom later today maybe, and see what temperatures is ECU seeing. Make some screenshots too.

Thanks

[Bowie69]

Coolant, MAF, lambda etc, I don't know exactly the setup on the 'T' engines, but sure someone will be able to point you at the right bits.

You near a forum member that would be willing to lend their expertise with VAGCOM?

Failing that I would think a few screenshots would help.

[hunker7]

I would expect 20-22mpg around town and 30-32mpg on a motorway run as it's 6 speed.

Which sensors could I look at?

[Bowie69]

Well mine has no turbo... but it's a coupe, and no motorway runs of late as front wheel bearings are on the way out!

Unfortunately no codes doesn't mean a sensor isn't out of whack, and that's all it can take, you checked the actual reading of the sensors to make sure they actually make sense?

I was getting <20 mpg when I swapped out my suspect MAF it brought it right back up to 26...

Roads round here all country lanes with b-roads, so not exactly cruising at a constant speed, so pretty happy with that. Motorway I would get 30 if only I could keep my speed down to 70

[hunker7]

I can make my I5 do 15 if I really really try... currently around 26, which is livable, just

Your 15mpg may be something really really simple, you got VAGCOM or a mate with it?

I won't say I drive like granny, but even if I do, it still does 15mpg. I do have vagcom and that says there are no codes. Mate, if i would get 26 I would be very happy chap. What are you getting on motorway runs?

I remember getting 35mpg outta my V6, and about 30mpg when flying.

[Bowie69]

I can make my I5 do 15 if I really really try... currently around 26, which is livable, just

Your 15mpg may be something really really simple, you got VAGCOM or a mate with it?

[hunker7]

Bowie has a point there, but driving a car that does 15 MPG would make me very sad to use as a daily.

What I don't want to do is leave all the probelms and end up with an S4 that's genuinely falling apart. And yes, 15mpg is horrible. Mate of mine has a V8 S6, and he gets 17 liters to 100 km, mine is 18 on a I5

[quattrostyle]

Bowie has a point there, but driving a car that does 15 MPG would make me very sad to use as a daily.

[hunker7]

In my experience the moment you SORN a car, is the moment you stop work on it, I'd strongly advise keeping it as a daily, then you are bound to fix the problems

And how would you check MPG with it stuck in the garage

That's the problem, I don't have spare dosh to fix her up now, but there is no way I'm selling her. Thwn having a diesel run-around I could save up some money to do majority of work in one go.

[Bowie69]

In my experience the moment you SORN a car, is the moment you stop work on it, I'd strongly advise keeping it as a daily, then you are bound to fix the problems

And how would you check MPG with it stuck in the garage