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Author Topic: My Poorly GTI  (Read 7852 times)

Offline Tone2have

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My Poorly GTI
« on: 10 February 2012, 21:51 »
Got on the A14 Tuesday night, happily takin it easy cos some T*at was sat in the outside lane! Finally she, they pulled in so in dropped down into 5th, put my foot down and lost power at 4000rpm. The engine light flashed, followed by the EPC light coming on. I managed to coast into the next service stage.

I called out the RAC and they could see mulitple mis-fires on all cylinders. The exhaust stunk of petrol (not oil), the RAC guy thought is was flooding/over fuelling. So I ended up getting a lift home on the back of a recovery wagon  :sad:

Took it in to the dealer, no courtesy car! :sad: However 1 day later and I have my 2nd new inlet manifold, something replaced on the turbo and a new injector to cyliner 3! Happily this is covered by the warranty :smiley:

My GTI is now running VERY smooth! It seems quicker which is nice! However it also seems to be guzzling gas?? I am now left pondering if my GTI has ever ran properly since it got knicked or is there something a miss with the fuel mix? VW suggest filling up and recording how many miles I get to the tank? Not sure what this will prove, as the mpg depends on how you drive but will give it a go.

I know that my optimum mpg was driving at 3000rpm or just under. So I'll let you know what I get.
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Offline Exonian

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Re: My Poorly GTI
« Reply #1 on: 11 February 2012, 04:56 »
It's probably using more fuel because you're driving it quicker because it's smoother and nicer to drive. See how things settle down over a period of time.
The GTI should do around 320 miles to a tank driven normally-ish, more if you're scared of touching the right hand pedal.

3000 rpm is a good engine speed for economy as it's around the peak torque figure and in the engine sweet spot.
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Offline Krazy_Z

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Re: My Poorly GTI
« Reply #2 on: 11 February 2012, 05:07 »
Quote from: Exonian on 11 February 2012, 04:56
It's probably using more fuel because you're driving it quicker because it's smoother and nicer to drive. See how things settle down over a period of time.
The GTI should do around 320 miles to a tank driven normally-ish, more if you're scared of touching the right hand pedal.

3000 rpm is a good engine speed for economy as it's around the peak torque figure and in the engine sweet spot.

I get about 320-335 Miles to a tank of fuel yet I calculate an average of 24-25MPG I am K04 and heavily modified.  Is this what you are suggesting is normal for a stock GTI?
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Offline Exonian

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Re: My Poorly GTI
« Reply #3 on: 11 February 2012, 05:33 »
You don't have any hills where you're based do you Krazy? Hills affect economy big time.
Lets say 320 miles is a reasonable minimum tankful going from full to when the light comes on for non scientific purposes in mixed driving including hills, cities, motorway etc.
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Offline RickS

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Re: My Poorly GTI
« Reply #4 on: 11 February 2012, 07:43 »
Quote from: Exonian on 11 February 2012, 05:33
You don't have any hills where you're based do you Krazy? Hills affect economy big time.Lets say 320 miles is a reasonable minimum tankful going from full to when the light comes on for non scientific purposes in mixed driving including hills, cities, motorway etc.
But if you have to go up a hill presumably you have to come back down it [whether it's the same hill or not] so that should even out the consumption
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Offline Exonian

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Re: My Poorly GTI
« Reply #5 on: 11 February 2012, 13:49 »
Quote from: RickS on 11 February 2012, 07:43
Quote from: Exonian on 11 February 2012, 05:33
You don't have any hills where you're based do you Krazy? Hills affect economy big time.Lets say 320 miles is a reasonable minimum tankful going from full to when the light comes on for non scientific purposes in mixed driving including hills, cities, motorway etc.
But if you have to go up a hill presumably you have to come back down it [whether it's the same hill or not] so that should even out the consumption

You'd think that wouldn't you, but it doesn't seem to work that way. If I head west from my home which is where the M5 ends in Devon I go across a couple of moors and lots of bendy A roads and eventually end up at Lands End. Average consumption is around 31-32mpg on this run, driving sensibly. If I head North and East towards the Midlands I get around 31-32 until I get past Bristol where it flattens out and then consumption settles around 34-35 mpg right up through the Midlands.

Figures taken from journey average on the computer thingy.
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‘23 8R, ‘20 8CS, ‘19 135iX, ‘19 TCR, ‘17 Ed40, ‘17 GTD, ‘15 7R, ‘13 GTI PP, ‘11 GTI, ‘09 GTI, ‘98 Ibiza Cupra, ‘05 GTI, ‘06 Polo GTI, ‘04 GT TDI, ‘05 Fabia vRS, ‘02 GTI T, ‘03 Ibiza TDI 130, ‘01 Leon 180, ‘89 mk2 16v, ‘99 Ibiza TDI, ‘96 VR6, ‘98 Ibiza TDI, ‘92 VR6, ‘88 mk2 8v, ‘92 Polo G40, ‘91 mk2 8v, ‘89 mk2 8v, 205 GTI 1.9, ‘83 mk1 GTI, ‘80 Scirocco GTI, plus some others I’ve forgotten 

Offline Tone2have

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Re: My Poorly GTI
« Reply #6 on: 12 February 2012, 12:38 »
Just done 95 miles up to Lincolnshire & got av 32 mph, and that was with the "odd" hard aceleration here & there! Just seems to be using more on the initial short runs to work & back. The power delivery is definitely much better.
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Offline Exonian

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Re: My Poorly GTI
« Reply #7 on: 12 February 2012, 12:42 »
Warm up cycle in cold weather uses a lot of fuel. The engine goes into choke mode plus you've got lots of electrical ancillaries running which consume power and thus more fuel. Bad time of year for fuel use be it your car or house.

My Ibiza GTI which is used as my daily commuter and shopping car has a 2.0 petrol engine that does around 35mpg on a run but is using about 45 litres of fuel to do 200 miles around town on a cold engine at the moment. I only use the Golf for long distance work so can't compare directly.
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‘23 8R, ‘20 8CS, ‘19 135iX, ‘19 TCR, ‘17 Ed40, ‘17 GTD, ‘15 7R, ‘13 GTI PP, ‘11 GTI, ‘09 GTI, ‘98 Ibiza Cupra, ‘05 GTI, ‘06 Polo GTI, ‘04 GT TDI, ‘05 Fabia vRS, ‘02 GTI T, ‘03 Ibiza TDI 130, ‘01 Leon 180, ‘89 mk2 16v, ‘99 Ibiza TDI, ‘96 VR6, ‘98 Ibiza TDI, ‘92 VR6, ‘88 mk2 8v, ‘92 Polo G40, ‘91 mk2 8v, ‘89 mk2 8v, 205 GTI 1.9, ‘83 mk1 GTI, ‘80 Scirocco GTI, plus some others I’ve forgotten 

Offline Tone2have

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Re: My Poorly GTI
« Reply #8 on: 14 February 2012, 21:04 »
Went up to Leicester yesterday & guess what, the engine management light came on again!! Took it into the dealer today & the found a cracked sensor cover causing a short to the engine! All replaced (and car washed) so let's see how long it goes now! Good news is the fuel consumption seems to be back nearer to normal!
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Offline PenguinGTI

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Re: My Poorly GTI
« Reply #9 on: 14 February 2012, 22:35 »
I don't find hills too bad to be honest, because what you lose climbing you can usually recoup on the way back down.

Sorry to hear that your car still isn't 100%.
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