VS M4.4 tuning dead? Start again here?

[Chuck W]

Hello guys, does anyone have this file: 608_rev5b18PSINew.bin?

Thanks very much!

Sorry, it doesn't look like I ever downloaded that one. Any particular reason you want that one?

[kingartur]

I need a xdf or a file that can raise the turbo boost. I've been trying with 608_rev5b.bin and Rev5b.xdf and It seems impossible. can you help me understanding which map raises the turbo boost? I've been trying the load target

[Chuck W]

Well, there is no "Boost" map in the bin, and there is no direct control to target boost.

You are looking for the Target Load Setpoint and the TCV Duty Cycle Pilot Control maps.
Here are those maps in my T5 tune with a 16T.


No, the boost isn't aggressive, but I have it set for more response. and I'm very happy with it as a driver. I could tweak max boost, but it's not that high of a priority.

The Tuning page of the M4.4 Wiki has a good discussion on what you're dealing with.
It links some posts in the old, huge VS thread, but that thread has been archived in the site, so they are dead ends.

The TCV Duty Cycle Pilot Control map controls how aggressively the turbo is allowed to spin up and meet the desired target load. Increasing the Target Load Setpoint can increase boost, but again, not a direct correlation.

[kingartur]

I've been changing the Target Load Setpoint and it doesn’t seem like it’s doing anything. Am I missing another map or limiter that could be capping the load? I’m not seeing any noticeable change in boost response after adjusting it. Any pointers on what else I should look at?

[kingartur]

can you send me your bin file in order to compare?

[kingartur]

Another thing, is that my 855 is from Europe, probably the bin isn't the same. Does anyone have a base file for a European 855? Thanks very much!

[Chuck W]

Another thing, is that my 855 is from Europe, probably the bin isn't the same. Does anyone have a base file for a European 855? Thanks very much!

I've been changing the Target Load Setpoint and it doesn’t seem like it’s doing anything. Am I missing another map or limiter that could be capping the load? I’m not seeing any noticeable change in boost response after adjusting it. Any pointers on what else I should look at?

I gave you that info in my post. Read the Wiki page. The above maps are the two relevant turbo control ones in the bin.

The 608rev5 bin you are using is based from a Euro T5 with the immobilizers removed. There are also a bunch of stock bins with the Motronic Suite stuff that can be used for reference.

I'm making the assumption here that you have an M4.4 ECU that you are flashing to. What's the ECU number? You've followed the info on the Wiki to get set up to flash?

[kingartur]

I think I've found the issue, my M4.4 ECU is from a NA version. From what I've read it seems like the M4.4 should be from a Turbo version

Do you think that matters?

[Chuck W]

I think I've found the issue, my M4.4 ECU is from a NA version. From what I've read it seems like the M4.4 should be from a Turbo version

Do you think that matters?

It absolutely matters. The NA ECUs don't have the components populated on the board for the TCV control.

[xnRS]

I think I've found the issue, my M4.4 ECU is from a NA version. From what I've read it seems like the M4.4 should be from a Turbo version

Do you think that matters?

It absolutely matters. The NA ECUs don't have the components populated on the board for the TCV control.

Just two 0 Ohm 0805 resistor are missing, and one 2.2k 0805 resistor should be removed. Their pads are easily traced via multimeter, or you can search VS thread for the photo of pads