VS M4.4 tuning dead? Start again here?

[Chuck W]

Thanks a ton for the reply, I think I got it to work!

No issues with the installation/setup for the M4.4 flasher plugin, I had everything properly set up there.

Included another ground ECU pin in the harness and bumped the voltage up to 16.2v, opened the flasher plugin with the bin already loaded into TunerPro, and it automatically provided the following outputs in the plugin window (approximately, can't remember for sure what it said verbatim):
>Preparing flasher
>Preparing to erase flash
>Erasing flash
>Flash erased
>Preparing to flash
>Flashing
*here the little green progress bar began to fill, i think it also said something about installing flash*
>Flashing complete

I then closed out of the window after nothing happened for a while, and shut off the power supply.

A couple questions just as a sanity check:

1. Does this seem like a successful flash? I'm not sure of any way to confirm that it actually did what it claimed to have done (in other words, do the outputs of the plugin in my case align with what a successful flash outputs in your experience?)

2. I never had to click on the "flash" button in the bottom right corner of the plugin window to select the .bin, does this mean that it automatically selected the bin I had loaded into tunerpro and flashed it onto the ECU? The plugin just started doing things as soon as I opened it.

3. I flashed the 608rev5b.bin file onto the ECU - are there any mods I need to make to the .bin maps prior to installing the ECU into my car and starting it? I have a stock US spec '98 V70R (stage 0, quite a few new OEM parts like vac lines, PCV, plugs, distributor, TCV, etc.), the only real changes I've made that would affect a tune would be that I've manual swapped it, and done an SAS delete (I will be getting another diode to install into this sacrificial ECU to accommodate that prior to installing it). I'm not sure if the euro spec HPT maps are compatible with the US spec HPT hardware, and definitely don't want to be replacing an engine if the .bin isn't compatible and makes explosions in the wrong places.

Lastly (for now), a note on the flashing that may help some others in the future: the only way I was able to get it to work was by restarting my computer (using the power button and waiting at least 10 secs before turning back on, not just clicking the restart button), opening TunerPro RT and flashing once everything was connected. Was unable to do another flash without restarting everything again.

Yeah, that is a successful flash. Hitting the "Flash" button in the pop-up will just repeat the process. Not sure if the way that it works is a bug or a feature. : )
Not sure why you have to restart your PC to get it to flash. I've used 2 or 3 different laptops and haven't encountered that issue.

On any changes needed.
- No need to add the diode to the ECU. You can disable it in the Diagnostics Disable section. "secondary air system". Disable both banks. I think all of the others that need to be disabled are already done so by default.

- The injectors the bin is calibrated for are the "blues" or "whites" . If you have something different in there, you'll need to adjust as per the info on the Wiki page. It's all there.

- The US V70R ECU (-455) is a bit more aggressive than the -608 T5 bin. I don't have any .bins for the V70R to compare, but I do have the -612 and -606 bins, which were B5235T4 and T6 tunes for the V70R's and the V70 AWD, etc. If you want to send me a message with an email, I can send those over. You can use those to compare/copy/paste into the -608 file to bring it up to where it is with the stock ECU. Drive it with the -608, and you'll notice a difference from current. Ignition and fuel maps, as well as turbo duty-cycle and target load setpoint will be the big ones to look at.

[S23]

Hey. I have a question about tuning Motronic 4.4 by a piggyback Ecumaster DET 3 ECU. I have connected DET 3 on B5234T3 engine and it running fine on 0 change Maps at this moment. Can you tell me what limiters on motronic 607.bin change/off to good control of boost and fuel corrections ? The boost will be controled by PWM map and solenoid on Det 3.

[Chuck W]

Not sure if this is what you're asking, but the turbo control is based on E5D4 TCV Duty Cycle Pilot Control and E454 Target Load Set Point in the -607 bin.

[S23]

That's not exactly what I meant. I meant which limiters to remove so that the computer doesn't limit ignition and boost. Does anyone have a working link to the M4.4 MAF Conversion program?

[Chuck W]

You mean this one? HERE

[S23]

You mean this one? HERE

Yes ! Thank you so much !

[xnRS]

Also searching for 0261203077 (2.5 N/A USA) binary

Or just any N/A USDM M4.4 Binary

did you find one? i am looking for the same, to swap out my siemens ecu for a M4.4.
Then replace the MAP sensor with a 3bar one, slap a turbo on it, and see what it does

There is one bin with DAMOS in copyOf-www.piese-volvo.rodroidvolvo . You can download the copy from m44 wikia https://m44.fandom.com/wiki/Binaries_and_TunerPro_Files mirror 3 link the bin P/N is 0261204570. Keep in mind that is has immo. I would recomend to convert all of the maps to 608/607 bin. (Keep in mind that Axes are diffrent too)

[LaSof]

Hey everyone, just came across this thread. Glad to see the one from VolvoSpeed has a legacy haha

I'm looking for the .bin and .xdf files for a '97 Euro 850 (B5254T, Manual, LPT 193hp, Motronic 4.4, Bosch part number : 0261203926) with the immobiliser removed. Anyone got theses ?

Cheers

[Chuck W]

There were only 2 VS bins with the immobilizer removed, and those were the -607 and -608 HPT T5 bins. You'll need to start with one of those on a 98MY M4.4 ECU.
Your car is an 850, correct, and not a V70? (I know there was some crossover in '97).

As someone with a US-spec '97 GLT LPT B5254T with originally a 0241203936 ECU (M4.4.1), I can tell you that you'll need something special in regards to tune files if you want working AC. The -936 is probably the closest to you car.

I was able to get someone to pull the -936 bin from the chip and pit together an .xdf for it, but that was more for reference, as flashing that bin to a 98MY M4.4 ECU did not work, nor did flashing one of the -607/-608 bins. The 97MY ECUs had some different hardware in them, and I could not flash either the -607 or -608 bins to them.

Also, if you followed the VS thread, the standard AC software mod does not work on the '97 cars (at least not on ours). I verified function on my other car (a 97 T5) so back up my claims. An OEM 98MY worked in the car just fine, but no AC function, at all.

What the end result was that I managed to get someone smarter than me to take the AC routine from the -936 ECU and apply it to the -607/-608 bins. From there I had a starting point to port over the maps, etc from the -936 bin to get a bin that runs the car and has functioning AC.

When I went into the project, everyone said that the 98MY M4.4 ECUs would work just fine in the -97 LPT M4.4 cars. The cars ran fine, but not one person reported working AC.

Anyway, the TL;DR version is that I have the following bins:
- Stock US-spec -936 B5324T LPT bin and xdf
- a VS 607 bin with the -936 AC routine
- What I think is my first pass at transferring the pertinent maps, etc from the -936 to the above -607 for an LPT bin from 6 years ago.
(I also have all of the standard VS "rev5b" files.)

[LaSof]

First of all, thanks for the quick reply and summary

I have a 0261203926, which I assume is the european version of the -936 you have. My B5254T is in a 740 wagon atm, so I couldn't care less about working AC haha. It is indeed from a '97 850 as you mentioned, I just wanna get it running on a stock map for now, but I'm facing immobiliser problems.

My questions are :
- does a -936 ECU comes without immobiliser as standard ?
- is there any major difference between the Euro and the US maps for a B5254T ? (as in that will cause the car to run poorly, if it's barely anything, I can manage)
- do you know of any ECU reference without immobiliser that will work P&P with a B5254T ?

-LaSof