Stu.H

****sorted****

Wonder if anyone can shed any light?

First short trip in it today.

Driving back from work, I thought I would see what MPG I could get (14miles trip)

I managed to get 34!!! With my GT TDI110 I would have got over 50!

It wasnt motorway, but lots of stopping and starting and coasting as much as possible.

I'm thinking either MAF sensor (doesnt ever hold back or anything like that tho) or temp sender (the needle stays as it should on the instrument display)

Ive got both cars at the moment (PD115 and normal gttdi 110) so can swap parts over to test..

Anyone got any ideas?




Edit to say: Whacking it on a VagCom tomorrow....

TIFF

stop ya moaning.............

Csm

Dont believe everything the dash is telling you

Do a proper calculation of your mpg

TONY C

PASSIONFORD

not

passionvw

lol

Rsmat

iTrader: (2)

+1

Big Will_

My GT TDI 150 only sees mid 30's around town with stopping, starting, sitting in traffic etc. It's only once it gets on the motorway that I get 50's...

FastFordChris

have you checked the climate controls off? as a mate of mines got a bora tdi and was getting about the same mpg with it on.

Stu.H

Tiff, I have to moan, I need every bit of MPG I can get. I dont earn as much as you

Chris, I dont believe it has climate control, only air-con...

Did a vagcom on the faults today....

17664 Coolant temp sensor G62 Open Circuit P1256
17965 Turbo Pressure Control Limit P1557
17978 ECU blocked P1570

Cleared all the codes, and turned car back on and didnt get anything. Will get them checked again tomorrow....

Im guessing the turbo pressure fault was due to when the turbo blew up and the ecu blocked one is an attempt at starting the car at some point with immobiliser still enabled

Where is the temp sensor on the gt tdi's? Ive got 2 golfs and can swap them over and test tomorrow.

Is this a good bet at the low MPG?

Stu.H

Times change mate. Its now PassionBMW, PassionDub, PassionFlower, in fact, its everything BAR Ford LOL

I'll be back in one soon enough, you know that, just Becky doesnt

jammerrs

aircon on or windows down will hammer the economy, and work it out properly, there can be quite a difference

Dlatch!

my old clunker citroen zx td returns 50mpg no matter how you drive it even with the pump turned up a touch

who needs these electronics

Stu.H

Haha .. its a mental thing I think.

If it showed 100MPG on the computer, but in reality I was getting 15MPG, I'd be happy

Turbosystems

iTrader: (5)

get a poous

c.h.r.i.s

Averaged 70.4mpg on a 230 mile trip to southampton the other week in my bora but can easily drop to low 30s round town in the traffic!

Stu.H

I got 70mpg with my other golf, something not right with this one...

Gonna swap sensors and see what happens methinks

BRAMMER

iTrader: (23)

I've got a chipped gttdi 115 and only get around 35-40 around the town

botters

iTrader: (2)

my mates chipped gttdi 150 was doing easy 40's round town with 50-60 on way back from pod averaging 90mph even showed 199mpg at one point lol!

AGAR-COSWORTH

I've always found my dash display (Mk4 Golf 1.8T) to be pretty accurate with regard to MPG readings? At the most 3 mpg out. Climate control has no bearing on my MPG either - i've run it for a full tank with it on, and then another when off, and there is no difference.

TONY C

you'll have to get a new focus rs, sorry i mean Focus C max, for all the kids Becky wants BEFORE you get another fast ford

carlos1395

i found this is with my golf and it was down to supermarket fuel made 10 mpg differance useing bp

DanW@FastFord

iTrader: (1)

How have you measured it? The mpg-ometers are more of a guide than an accurate measure. Run it for more miles, and then see what it says.

Brim it, record the miles, then brim it again to get a more accurate measure of mpg.

I wouldn't start worrying unless I had a good few tanks, all reading low. Mid 30s around town isn't exactly great but it's not really shocking.

R4N SS

iTrader: (6)

or run the diesel on biofuel



























cheap as chips

Stu.H

You always said my escort was slow


Well, another vagcom session and the temp sender is shot.. I will change it over the weekend and see whats what.

On a plus side, I bought an £8 cable of eBay to use VAGCOM and it works with windows 7 x64!

TONY C

it was slow to me but fast for you, don't forget, i remember you squealing in your passenger seat as i tuck it round the block

Stu.H

I was scared to break it, you was lucky

You still fitting my GT47R tomorrow?

TONY C

scared to break it, more like scared to drive it, you never rev'd it past 4 tho lol

TONY C

also which GT47 do you want, the GT4708R or GT4718R, they cost over 2K,

Stu.H

I gave it beans to its graveyard (my mums) and fooooook me (down that straight) I kept it planted in 4th and woooowwwwwwwww.......

I know the box would have died VERY soon

Anyway, after the GT47R install tomorrow I shouldnt bee so piney

Stu.H

You're the tuner, you tell me whats best

I've got a 30 minute window for you to fit and map it tho

Si B

iTrader: (59)

dojj

iTrader: (3)

you need to do the brim test

top it up, do the mileage, then top it up again and do the mileage and work it out like that

i put up a post about a year ago when my car did some funny numbers, but using the brim method i found that the computer was telling me the truth for the first part of the journey, but when i went back the other way it was telling me LIES DAMMIT!!!!!!!!!!!!!!!

i've since been otld that some cars ave mpg is measured for the previous section of mileage so you may have reset it and it showed good mileage, but after a shite period it will show you worse for the next 20 miles or so

Jonzy

I was under the impression that the vag mpg reading was the avg over the previous 40 miles only, I'm probably wrong tho.

I get 40mpg easily with my 1.8t, so I'd expected a oil burner to get at least that.

DanW@FastFord

iTrader: (1)

I would imagine it's measured from the last time it was reset.

timrud

Yes it is from when it was last reset. If you turn the car off it doesnt reset itself until a certain amount of time has elapsed. I always check the miles traveled so I know when it last reset itself (I never reset it).

BRAMMER

iTrader: (23)

Worked out the MPG,

Last fill up i got 410 miles to £50.00 which works out at 43mpg which is a mixed bag of driving - town, motorway and country roads so not too bad.

dojj

iTrader: (3)

Apprently the mondeo bases it on the last 200 miles unless you reset it

doing the battery disconnect/dial sweep reset gives you instant mpg based on the car being factory fresh rather than a reset from the button for avg mpg (range is still based on the 200 mile thing)

dawesy1700

coasting is actually worse than letting off when it comes to eco driving, if you leave it in 5th down a hill then the engine is pretty much bein turned over by the wheels with barely any fuel being injected, if you coast out of gear the engine has to inject more fuel to turn the engine over itself, sitting with the engine running for 3 minutes is roughly 1 miles worth of fuel, i didn't believe it till i tried and it makes a big difference, my mk2 escort with a 1660 xflow lump on bike carbs returns 44 mpg on motorways with a 4 speed box.

Big Will_

I got 512 miles from a brimmed tank to about 10 miles after the fuel light came on today and it took 52 litres so just shy of 45mpg and that again was mixed driving and my dash average for the tank was 44.8mpg

smithy20vt

Sounds like you need to change the coolant temperature sensor as that is the first error that VAG Com has brought up they are only about 20 quid a take 2 mins to change,there well known for failing VW updated them to a green topped sensor,

Stu.H

I took both sensors off the car last night (one of each of the cars). .. damn, they are different.

Bought a new one off ebay for a tenner, will give that a whirl when it arrives..

Boost kicks in REALLY early compared to my 110, as in about 1500 revs, its MUCH more agressive than the 110.

But I cant drive it at less than 1500 all the time and wonder if its just getting used to driving it?