Hi guys!

I am a car mechanic, but I am a newbie on ECU tuning. I want to know more about it, I have read some articles, watched some videos, and checked some mondified bin files.

After these, I started playing with my 2001 1.9 PD TDI ATD Fabia (PD100). The car is absoultely stock, it has run 300k kms, the injectors, turbo, and maybe the clutch are original, but they are fine. It has a new timing belt kit. Intake manifold has cleaned about 2k kms ago.

This is my everyday use car, I don't want very high performance what may kill my engine or clutch. I don't want to find the limits.
The thing I want is some extra torque at the 1600-2500 range for normal everyday driving, and the more important is, I need some more useful rpm at the top end, because with the original bin I had some problems with overtakings: I started the overtaking in 4th gear at 2000rpm, but the good accelaration ended at about 2600-2800, so I had to change gear during overtaking. Is I watched VAG-COM logs at full throttle, the turbo pressure is fine, but the MAF value goes down form 850 (1600-2500) to 750(2700-3200) and to 680-700 (3200-3500). And at these MAF values the IQ is very limited by the smoke map.

In normal driving conditions I use the 1500-2400 range, with about max 3/4 throttle pedal usage, and I want to keep the economy here, but if needed, only at full throttle, I'd like some more torque and more rev.

For this, I made the following with VAGEDCSUITE:
-keep the original driver wish map, the original throttle response is perfect for me, and the original values covers my other maps needs at any conditions.
-modified the smoke maps, only for the full throttle needs, based on the MAF-rpm datas from VAG-COM logs.
-modified torque map, max 50 iq (not more to protect the clutch, and the timing belt, and in fact I don't need more torque)
-modified target boost (+50 - +100 mbar on the ranges modified in the smoke map. No more pressure to protect the turbo)
-modified svbl, and boost pressure limiter
-activated the launch control map, soft limit at 2300 for standing vehicle, max rpm limit at 4200 for the full speed range
-MAP iq limit, soi, soi limiter, duration, start iq, and EGR maps are original. All of my modifications in are covered in the ranges of these maps, so I thought that no modifications are needed.

I attached the original and the modified files, could someone who has more experience look at them?

Won't the clutch or the 5 speed Fabia gearbox be damaged with these settings?

there is no files attached, however from reading your post, its not really heathy for clutch to ask too much torque on low rpm , imo max torque when remapping should be atleast at 2500rpm, also when leaving drivers wish stock make sure that it's not limiting you on 100% collumn, same thing goes for MAP and lambda if in use. and post files :D

jurebv wrote:there is no files attached, however from reading your post, its not really heathy for clutch to ask too much torque on low rpm , imo max torque when remapping should be atleast at 2500rpm, also when leaving drivers wish stock make sure that it's not limiting you on 100% collumn, same thing goes for MAP and lambda if in use. and post files :D

Thank you for your reply!
Sorry, here are the files.
(I uploaded them previously, but than I saw that I uploaded a wrong file, so I deleted them.)
I was thinking on the low-rev torque when edited the file (not to be too high), I increased the values from the stock, but they are still under a PD115's (AJM) original values under the 2000rpm range.
I tried this file in the car, it goes better than the original. In the last week I tried some heavily tuned file, the car had unbeliveable performance, and torque, but I was afraid about damaging the mechanics, so I made this softly tuned file.
Of course, if someone find any problems with it, I will modify.
(As I wrote, I don't want to find the limits, this is my everyday use car, I go to work with it (120km each day), and we use it for travels and holidays in the neighbouring countries. A fatal mechanical breakdown at 500-1000km from home wouldn't be a good thing. I want an optimum point between performance, reliability, and economy.)
An other question: this is a part a VAG-COM log (not with the actual bin file). Are the MAF readings seem to be OK? (I'm afraid that not. Air filter is new, intake manifold, and egr valve are clean.)
Engine speed MAF Intake air press. Throttle Inj Qty (actual) Torque
1575 705.6 1632.0 100.0 44.7 226.0
2121 852.6 2142.0 100.0 48.3 296.0
2478 803.6 2040.0 100.0 46.7 310.0
2835 769.3 2060.4 100.0 43.1 300.0
3150 705.6 1958.4 100.0 38.7 272.0
3402 676.2 1948.2 100.0 36.8 252.0
3612 656.6 1958.4 100.0 34.9 242.0
3822 651.7 1999.2 100.0 33.8 232.0
3969 641.9 2004.0 100.0 31.3 224.0
And a final question:are the calculated torque numbers in VAG-COM beliveable (within a small % error level)?

Maf looks (too) low

jurebv wrote:Maf looks (too) low

Thanks! Today I tried to clean the MAF sensor, but it wasn't dirty, the difference in MAF values is about +15-20. So they are still low. Next week I 'll buy a new MAF sensor.
Otherwise, are the modifications in my bin file OK?

Why decrease original drivers wish at 5355rpm? - leave it stock completely
Torque limiter on 800 row why change values from 3800rpm and up when on other rows you left stock (900, 1000)?,
Smoke MAF values on 3000-3250,3500,3800 rpm lower then in torque limiter they should be higher torque limiter should be your lowest (most limiting) limiter,EGR changed in low iq range only- I would dsiable it completely

It is ok tune but very gentle(276nm 2000-2800rpm and around 80kw 3500rpm) in my opinion, you could make more increase and still be on the safe side, I run on my daily car increase from 250->320nm and 105-145hp with no issues or any risk

Also you could save some $$ on buying MAF sensor, you can run without it using MAP sensor...there are thread about using MAP instead of MAF , use search

jurebv wrote:Why decrease original drivers wish at 5355rpm? - leave it stock completely
Torque limiter on 800 row why change values from 3800rpm and up when on other rows you left stock (900, 1000)?,
Smoke MAF values on 3000-3250,3500,3800 rpm lower then in torque limiter they should be higher torque limiter should be your lowest (most limiting) limiter,EGR changed in low iq range only- I would dsiable it completely

It is ok tune but very gentle(276nm 2000-2800rpm and around 80kw 3500rpm) in my opinion, you could make more increase and still be on the safe side, I run on my daily car increase from 250->320nm and 105-145hp with no issues or any risk

Thank you very much for your reply!

I modified the file as you wrote: I modified DW,EGR,Torque,and smoke maps, increased the tune a little bit (I think now I don't need more - maybe later, after a new clutch kit, and some more learning about ECU based tuning).

Is the EGR map OK (filled with 850)?

In fact, I have ordered the new MAF sensor yesterday (from the net, and I've paid for it with credit card). :crazy: So as I had bought it, I think that I will use it.

I deleted the yesterday uploaded file, (it had no download yet) because I modified it again.

Yesterday I installed the new MAF sensor, OMG, my car has been replaced! It works nicely on high rpms (over 2500), before this it was dead over 3000. The VAG-COM logged MAF values are about 20-25% higher, than with the old sensor.

I modified the bin file based on jurebv's comments, and the VAG-COM logs:
-modified DW map (full stock, except @100% @3000rpm, 48,5->49,5 (48,5 would be a limit))
-EGR map flatted @880 value
-torque map: a LITTLE bit increased values
-smoke maps: as new MAF sensor gives higher values, the 650 column back to original, the other columns over 750 got some fine modifications.

I uploaded the file yesterday evening to the car, this morning it ran fine, I love it.

Can anyone see some errors, mistakes in it (I am not sure about the EGR map)? (Please keep in mind that this is a small tuning, bacause of the original clutch kit in a car with 300000 km.)

Im not able to review your file right now but based on your first try Im sure its fine ;) just dont forget to log actual and specified boost to see if you need any adjustments in n75 map