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Author Topic: The Volvo ME7 thread:  (Read 1465075 times)
s90power
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« Reply #2880 on: September 22, 2025, 04:59:08 PM »

You really should study whole torque model in FR first.
In your file you will not get more then around 130% load request because your highest KFMIZUxx is around 75% torque.
When you put that into KFMIRL you get around 130% load what is your current limit.

At what hex address do you find these "KFMIZUxx", I cannot find any reference to that map name either in any Volvo ME7 damos/mappack?
I have found different monitoring maps (on my phone now so cant give hex addresses) but they maxed out at around 180 with 192 as max (255)
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keichi
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« Reply #2881 on: September 24, 2025, 03:24:34 AM »

At what hex address do you find these "KFMIZUxx", I cannot find any reference to that map name either in any Volvo ME7 damos/mappack?
I have found different monitoring maps (on my phone now so cant give hex addresses) but they maxed out at around 180 with 192 as max (255)

0x11B83 and on - 3 maps 8x8 bytes (axes elsewhere)
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s90power
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« Reply #2882 on: September 29, 2025, 10:17:16 AM »

0x11B83 and on - 3 maps 8x8 bytes (axes elsewhere)

Thanks!

That was the missing part, I am getting just about/under 1bar of boost now with stock R PIDS  Grin
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Skavac
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« Reply #2883 on: October 01, 2025, 07:10:24 AM »

Hey everyone,

I am working on my other S60. This one is a B5234T7. Basically the same as a B5234T3, but with a 13T turbo

I really like the way the car runs with the V1 file. However, when I go full throttle for more than 5 seconds, it sets ECM-6806. Turbocharger Flow Too Low. And does not boost

Lowering KFLDRX on the V2 file solved this problem but I loose a lot of power that I had when I am using the V1 file.

Can anyone please point me to the right direction to fix the ECM-6806 issue I am experiencing with the V1 file?

Attached is the original, XDF, V1, and V2 files

Thanks in advance!
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keichi
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« Reply #2884 on: October 01, 2025, 12:02:28 PM »

Hey everyone,

I am working on my other S60. This one is a B5234T7. Basically the same as a B5234T3, but with a 13T turbo

I really like the way the car runs with the V1 file. However, when I go full throttle for more than 5 seconds, it sets ECM-6806. Turbocharger Flow Too Low. And does not boost

Lowering KFLDRX on the V2 file solved this problem but I loose a lot of power that I had when I am using the V1 file.

Can anyone please point me to the right direction to fix the ECM-6806 issue I am experiencing with the V1 file?

Attached is the original, XDF, V1, and V2 files

Thanks in advance!

With the way you modified LDORXN you told ECU that in case something goes wrong like MAP or TCV malfunction or some airleak and turbo goes crazy you want it to go even more crazy and blow up your engine possibly Smiley
If that is what you want you can leave it like that Smiley
But seriously, you should even set it lower then stock if you tune the car. That way you will be safer in case of issues with overboost and you will get more noticeable "boostcut" or rather throttle cut if you properly set KFVPDKSx maps so you will not miss the issue.

Also at LDRXN you are probably requesting way more then the turbo can do - so you can't be surprised ECU triggers underboost error.
You can FF out EDLDRP like LDORXN so you disable underboost diagnostics also and happily request any boost Wink
I am kidding. Don't do it! Set your boost requests and PID properly and leave stock diagnostics and safety features!

If you need to add so much fuel in FKKVS then you probably have some issue with MAF (dirty, damaged?) or fuel system or both (i assume you did it to correct fuel trims not because you misused it for something else Wink

In KFVPDKLD you basically disabled flow diagnostics so in case MAF goes crazy or charge pipe brakes/pops out ECU will not see that and will let possibly kill/damage/stress your engine.

Adding that 3deg. of ignition in KFZWOP doesn't add you any more ignition but mess up load/torque calculations for ECU (with 3deg. difference not much fortunately or unfortunately depend what is the purpose of the tune, improving engine control or messing it up Wink
That table is not ignition table basically.

And props for disabling VMAX limiter - that is actually quite funny Wink
« Last Edit: October 01, 2025, 12:14:42 PM by keichi » Logged
Co8ra
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« Reply #2885 on: Yesterday at 10:30:24 AM »

Maybe someone will find something useful that I found on the internet

https://drive.google.com/file/d/1Nv7l31H0E6-2cFHDn-SnUBtzgQCs2tsr/view?usp=drive_link
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