The operation of a TDI

[prj]

Glad you guys appreciate the material.
Got little feedback elsewhere on it

Actually it's a huge amount of text to write. The explanations are a lot more complex than when you just do your thing... and I basically only changed 2 maps on this car.

[Avantus]

Interesting! Looking forward to more

[s2_wot]

An excellent read as always, I'd be interested to know if you ever decide to do something with the AHU / AFN engines. Thanks for posting.

[prj]

What do you need done?

[s2_wot]

I've an AFN A4 B5 quattro avant, would you like to chip it remotely?

[prj]

Tuning diesel remotely is actually pretty simple.
The problem though is that AFAIK AFN is a MSA-15 with EPROM's inside, so you need to unleash the soldering iron...
Plus you need multiple revisions and logs to get it to run well.

So yeah, that'd take a fair bit of work and would need hardware you probably don't have.
Of course I can ask a friend on whether he has remapped a such car with stock hardware.

[s2_wot]

I'll just send you the ecu if you have the information to chip it, send me a pm if you wish, no point messing up your thread.

[prj]

While I could chip it, I would need to do multiple revisions and need logs off a car between every revision..
I don't have a ready tune for it. I'll let you know via PM if this changes

[Sir Buff]

Thank you for sharing a bit of your knowledge.

[Billman]

Interesting stuff!!!

[20Vcqdriver]

So do you fancy a guinea pig for the V6 3TDi engine. Worse issue with these engines in manual form is the terrible throttle response and the petrol like lag which is absent on the old 1.9's. A little extra power & torque would be good too

[prj]

If you had a flashing cable and vag-com, that would not be hard to do.

[20Vcqdriver]

If you had a flashing cable and vag-com, that would not be hard to do.

Really! what is a flashing cable? Can obtain a laptop with VAGCom

[prj]

MPPS, Galletto spring to mind.
Though the problem is the lack of experience/tools you have should something go wrong.

For example, if I ever had a problem with an interrupted flash, and then a non-starter, I would not have a problem finding the ECU, opening it, desoldering the PSOP-44 flash chip, sticking it into a programmer, rewriting it, soldering it back and putting it all back together.

Honestly though, someone would need to be doing the flash who can do all that. Otherwise it's just not very safe without a backup plan.

[4WheelDrifter]

Nice write-up on the old-skool diesel tuning, Dimitri. Thanks for sharing. I especially like the note at the end.
Now get to work on EDC 15 P.

What makes you think I can't do that already?

I had a feeling you were going to say that.

I was thinking about getting you to map our AYZ, but then I found one of the tyres was 10% down on pressure, so now it's ok.
I have the luxury of being able to pootle around on a 33kW map most of the time, then the switch to the full 45kW feels like a big boost.
I have heard that some tuners do 66kW maps on stock HW.

I think I hold the record for the least powerful car to run on the MRC RR.