King of the Rank! Skoda Octavia- Fresh from its victory at Crail!

[Lacquer Peel]

Looks like it https://en.wikipedia.org/wiki/List_of_Volkswagen_Group_diesel_engines#1.9_R4_TDI_29-81kW

[garbaldy]

Thanks for that will make an offer on it then.

[320touring]

I've just been to look at a Vreg Audi TDI and it had the AHU engine code on the boot sticker, are these the same engine as your taxi?

Winner winner chicken dinner:)

[320touring]

Time for another fuelling today-

 

602.3 miles on 47L (using a 44L WVO, 3L Derv mix). This tank included 17x 14 mile runs at Crail, after I'd remapped it.

 

Very pleased with that 58.3mpg (48.55mpg US), and a total fuel cost of £22.33 ($34.61)- giving me a cost of 3.7pmile ($0.057mile)

 

 

 

 

On the run home I took it very easy- and had this as the shown average (based on the computer being 10% optimistic, I reckon a genuine 80mpg (66.61mpg US) over 17 miles.)

 

[320touring]

I've been focusing in the wrong area on this car for a wee while- time to get back to basics!

 

I bought this car primarily for its economy- so time to look at maximising the MPG. Currently the car is remapped for HP/torque, but done in such a way that low loads mean that it performs almost like stock.

 

For this tank I intend to see how well I can do on the current map whilst commuting to work. The route is 24 miles each way, of which 3 miles are town driving, 4 are A road and 17 are Motorway (the m80 near Glasgow).

 

I commute at peak times, and have encountered some tailbacks on every journey.

 

Here's a look at what I've achieved so far- looking at my initial and latest runs.

 

Monday Morning- 62.28mpg (51.86 US) actual (allowing for 10%over read on obc)

 

Monday evening-58.14mpg (48.41US)

 

AVERAGE= 60.21mpg (50.14US)

 

Wednesday Morning- 64.17mpg (53.43US)

 

Wednesday Evening- 63.27mpg (52.68US)

 

AVERAGE= 63.72mpg (53.06US)

 

Heading in the right direction at least:)

[Dave_Q]

Mr Touring, don't know if you've got yourself a VAGCOM wire yet but if you have it's possible to recalibrate the OBC to be more accurate.

 

I seem to recall from my last Skoda that it doesn't remember OBC figures between startups, so how you would calculate it I don't really know as you would need to know the OBC figure for a full tank vs actual.

 

I suppose you could do a partial fillup after a longish journey?

 

Anyway here it is. 

 

Work out the actual MPG figure from a full tank:

 

Number of litres added / 4.54 = number of gallons used

 

Actual MPG = distance on full tank / gallons used

 

Go into VCDS/VAGCOM, open controller 17, Instruments
Click advanced functions, Adaptation box 10
Scroll up to channel 3
Standard default value = 100%. This can be altered withing the range 85% to 115%

 

Work out new value this way:
New % figure = (old % figure x MPG figure shown on dash) / calculated actual MPG figure

 

[Lacquer Peel]

Have you done manual brim to brim calculations?

My car cost fuck all, runs on cheap, occasionally free fuel, I'm just going to enjoy driving it.

[320touring]

Have you done manual brim to brim calculations?

My car cost fuck all, runs on cheap, occasionally free fuel, I'm just going to enjoy driving it.

yup-log all tanks light on to brimmed-sitting at an average of 61.3mpg over the 1860 miles covered so far.

 

my log is on spritmonitor

 

http://www.spritmonitor.de/en/detail/706177.html

 

Dink, on the computer data, the car has 2 trip computers

 

1. Logs data from key on until 2hrs after key off-I use it for single trip monitori g

 

2. Logs data from last reset- so it tracks all the time until you reset it. I use it to give me 'whole tank' data.Reset it wach time I fuel up.

[stripped fred]

Would you get more mpg if you mapped it for more torque at low revs?

[320touring]

Would you get more mpg if you mapped it for more torque at low revs?

my intention over the next week or so is to have a shot at doing an economy map..

 

I think you can also switch between maps on the ecu so I may be able to have both loaded

[garbaldy]

When you are messing with the maps is it just the fueling then ? I was under the impression the boost is mechanical and not ECU controlled,

 

 

Can you tell from the questions i bought that Audi then.

[320touring]

When you are messing with the maps is it just the fueling then ? I was under the impression the boost is mechanical and not ECU controlled,

 

 

Can you tell from the questions i bought that Audi then.

Boost is electronically comtrolled on the ALH- so you can alter the requested boost fairly simply.

 

think the boost limit map is shown in one of my previous posts. Dink is a bloody good source of info so get nattering to him too:)

[Dave_Q]

When you are messing with the maps is it just the fueling then ? I was under the impression the boost is mechanical and not ECU controlled,

 

 

Can you tell from the questions i bought that Audi then.

 

Did you say this Audi is an AHU?

 

If so it will have a wastegate turbo (probably Garrett GT15) but the boost on that is also electronically controlled via a vacuum solenoid type affair.

 

Not all good news on the remap front though - I had a 96 A4 with an AHU that was on older management and can't be remapped via OBD.

 

If yours is one of those the only way to remap is to desolder the chips from the ECU and solder in sockets.

 

Also, RE: my previous post on recalibrating the trip computer, on further reading that may only apply to later cars (mkV Golf/OctyII onwards).

[320touring]

Did you say this Audi is an AHU?

 

If so it will have a wastegate turbo (probably Garrett GT15) but the boost on that is also electronically controlled via a vacuum solenoid type affair.

 

Not all good news on the remap front though - I had a 96 A4 with an AHU that was on older management and can't be remapped via OBD.

 

If yours is one of those the only way to remap is to desolder the chips from the ECU and solder in sockets.

 

Also, RE: my previous post on recalibrating the trip computer, on further reading that may only apply to later cars (mkV Golf/OctyII onwards).

Good knowledge re that dink!

 

re VAGCOM still not got it-loathe to spend so much on software given that the remappy fastery software was free!

[320touring]

Took the Octavia to head to my mother's birthday shindig yesterday.

 

Approaching a queue of traffic on the m74, the brakes felt odd.

 

300 yards later on the sliproad and I had no footbrake to speak of.

 

mildly troublesome.

 

I ditched it with a few profanities and went about my business.

 

Today I managed to get a look- and it looks like a rear wheel cylinder has failed comprehensively.

 

 

 

 

luckily a local parts emporium had replacements in stock- so I purchased 2 and some brake fluid.

 

I'll replace both I think as it was not a pleasant experience

[Hendry]

Do the front pads while you're at it and put off the brake pad wear light (that seemed to be illuminated in every taxi Octavia I've ever been in, not confidence inspiring that your drunk, its pitch black, the Taxi driver is driving like an F1 driver and the pads are down to the metal!)

[320touring]

Do the front pads while you're at it and put off the brake pad wear light (that seemed to be illuminated in every taxi Octavia I've ever been in, not confidence inspiring that your drunk, its pitch black, the Taxi driver is driving like an F1 driver and the pads are down to the metal!)

pads and disks were done 2k ago-wear sensor is dodgy where it clips into the car loom.

 

all explained earlier in the thread;)

[Lacquer Peel]

I think you'll need to replace the shoes, there's no cleaning them with brake fluid contamination.

[beko1987]

Were you on an economy run? At least if you were it would have failed at sub 35mph...

 

Sounds a bit brown trousery, least its an easy fix! I had a leaky rear brake cylinder on my old zx, nipped it in the bud before it got much worse and I hate fucking around with drum brakes...

[320touring]

I think you'll need to replace the shoes, there's no cleaning them with brake fluid contamination.

that may be something that needs doing.

 

until I can see if it'll bleed up I'm no doing anything else

[bigfella2]

I am sure that someone else on here had exactly the same failure as yourself recently. Not as uncommon as you would think.

[320touring]

I am sure that someone else on here had exactly the same failure as yourself recently. Not as uncommon as you would think.

I think it was mentioned earlier in this thread!

[bigfella2]

Ha ha that will be why then!!

[320touring]

I jumped in the 316 to had out to sort this.

 

Had left the sidelights on so battery is flat.

 

Grr

[320touring]

Got the calcs completed for the first week of commuting.

 

Covered 242 miles, averaged 63.04pmg (52.49US), at 35p per litre, its an average of £1.22 per day in fuel.

 

Even adding on car tax, insurance and servicing, plus parking costs the total commute average was £3.70 per day.

 

A day return ticket is £12.30 on the train, and a weekly pass is £50.60

 

So I'm saving £8.60 over a day ticket or £32.10 over a weekly pass

[320touring]

Have ordered proper sock filters for the WVO today- hopefully be here by the weekend!

[Lacquer Peel]

Struggling with the coffee filters?

[320touring]

Struggling with the coffee filters?

Nup, done 540 miles so far on that coffee filtered WVO-without issue.

interested to see how these filters work-and good to have option to filter finer.

 

may run comparison filtering to see:)

[Lacquer Peel]

I've always used sock filters after experimenting with improvised ones, they're great. Just invert them and wring them out once they start clogging.

[320touring]

4TH Tank in on this today-

 

Had to bash 5l of veg and 6l of derv in until I could get to the veg supply.

 

786.7 miles covered and 56L of fuel used (50L wvo, 6L derv)

 

cannae complain at 63.86mpg!