125TDI Tuning

[cru22z]

Ahh scratch my former comment, yours is a MK6 level diesel, and yep it is antitune, so ECU has to be removed for a "proper" tune. No way around that, physical fact of the ECU wiring. You can try a interceptro box, but personally I think they are very very crude at best.

I have tuned a current Jetta, but only for blue optimize, that is max economy and emission reduction. Nice wack of extra torque, and the guy is getting 1200kms plus a tank, but any performance tune on your car will be limited due to the DPF, although my 125 TDI was significantly better on a normal "performance" tune. Go beyond this, like I am now, and you will be producing a LOT of soot and doing far more frequent DPF regens, something I am currently experiencing. My tune is not a "release to public" one though.

I found better low down ( though your newer common rail already is over my MKV PD ) and another usable 1000 rpm of power up top over stock, made the TDI very "petrol like" in the mid to upper end. Smoothed out the 1700-2000 rpm torque wack, mainly by filling in before and after.

Whomever you go with, a tune is highly recommended!!

Yes you are correct but in europe and USA they have found a way to REVO and Bluefin the TDI with ECU protection. What they do is unlock the ECU then flash it, then put ECU back and give you the handheld tuner so you can revert back to Stock and back to Tuned

[entice]

I think he means it has to be physically anti tuned and then it can be tuned via obd-ii.

[Greg Roles]

Nope, not an official Viezu thing, at this stage. ECU out each and every time. We are limited to what Alientech come up with, which is obviously ever expanding.

What Revo etc have obviously done is worked out how to extend the boot pin out to the OBD plug, like the prior, flashable cars. Manufacturers have basically removed this function from the port by not extending off the board at all, hence the need to open the lid and power that pin up directly on the board.

Will be a nice option when it comes out, but remember all these new ECU's now log EVERYTHING, so revert all you want, the manufacturer knows all ( until that function is defeated! )

[cru22z]

Far out Greg! your making me nervous now.. I guess you learn from your mistakes...I'll just have to put up with the oilers performance for now and probably upgrade in a coupla year to the 5.5 sec 0-100 Passat V6. Hopefully they will have an R Package for the 220kw V6 by then or better yet use the new MQB platform with the newer shape etc.
I had a look at cars ranging between $55k-65k and I guess the fastest brand new 'FAMILY' car would be the Passat V6.
If I was single with no kids, I would have the choice of BMW 135i, Golf-R, WRX STi, Evo X etc.
I could perhaps choose a STi or Evo but will be a tight squeeze in the back for the kids...plus dont want my wife getting car-jacked