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Author Topic: The Volvo ME7 thread:  (Read 1757157 times)
s60rawr
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« Reply #2880 on: November 30, 2025, 11:38:15 PM »

http://www.openmoose.net/blog/?page=renatus

public version is out

b cem pin cracking
05+ cem config editing ( need pin from other forms )

easy ECM cloning, ive done a few on 04R's and an 06R
easy flash and logging
give feedback to rlinewiz
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There is a free flash suite in progres

http://www.openmoose.net/blog/?page=renatus

#1 Nefmoto -Karma Sponge!
Mr bell
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« Reply #2881 on: December 02, 2025, 02:07:12 PM »

http://www.openmoose.net/blog/?page=renatus

public version is out

b cem pin cracking
05+ cem config editing ( need pin from other forms )

easy ECM cloning, ive done a few on 04R's and an 06R
easy flash and logging
give feedback to rlinewiz

I've downloaded openmoose and it's is working perfectly so far, much impressed.

A few little things I'm unsure of on the xdf file though.
Possibly just me being dumb and not grasping things yet,  I can't see a few definitions, LDRXN is the only 1 I can think of off the top of my head, there's a few others but I'd need to go through them to remember which ones



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Mr bell
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« Reply #2882 on: December 03, 2025, 05:19:14 PM »

Either I'm being dyslexic or my ldrxn is kfldrx
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s60rawr
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« Reply #2883 on: December 27, 2025, 10:24:45 PM »

I've downloaded openmoose and it's is working perfectly so far, much impressed.

A few little things I'm unsure of on the xdf file though.
Possibly just me being dumb and not grasping things yet,  I can't see a few definitions, LDRXN is the only 1 I can think of off the top of my head, there's a few others but I'd need to go through them to remember which ones

open your file in hex and search a2L and list the software. 20FWHJ or w/e is an example. 20FWHJ is me7.0 and uses  ldrxn
02+ bosch TB uses KFLDRX


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There is a free flash suite in progres

http://www.openmoose.net/blog/?page=renatus

#1 Nefmoto -Karma Sponge!
Mr bell
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« Reply #2884 on: December 28, 2025, 04:06:16 PM »


Mines 50qhhj, definitely kfldrx.
Previously tuned by an unknown, I don't have an original file.
Some logged data showed egt passing 930° near the end of a 3rd gear pull.
Enriched kflbts and just touching 900 now.

My next concern is whoever tuned it made changes to fkkvs and I'm trying to understand why
The output just looks wrong, but I'll learn before doing anything here, but from what i have learned should be stock if injectors are stock, which they are.

My timing advance seemed a bit aggressive, averaging 1-3° knock retard on transition to wot at 2500-3000rpm.
Finding mixed information here about this being acceptable or not, personally it makes more sense to me to not push the timing into the knock limits only to have the timing pulled anyway, I'm pretty sure this is why I needed to rebuild the engine when rescued the car.

Kfmirl and iop literally broke my brain trying to grasp.
I understand what it's doing, and why it is, but calibrating the tables, and knowing how much you can push is another thing entirely, fully forged should helps here, I'm certain.
 It does seem to be calibrated fairly well already, though I feel these maps and kfldrx are giving me too much torque up top, and too little mid range.

Seems I have a loooong ways to go before I start cramming a bigger turbo in.

I'm being dyslexic again, fkkvs is a fuel correction table, airbox and maf is stock, but all pipes from intake to manifold including intercooler have been changed, I'm assuming they modified fkkvs to account for this?

trying to research maf calibration, i have mlhfm, but can't find mlofs
in anycase i'll post the bin I'm working with, this bin was my original but modified, before any changes i made
« Last Edit: December 29, 2025, 08:21:42 AM by Mr bell » Logged
makgan21
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« Reply #2885 on: December 29, 2025, 03:17:16 PM »

Hello, first time poster here. Read most of this thread. There is a lot of good information here. I've mostly done tuning on old 90's Honda's and old (60's-70's) muscle cars.

Anyway, I have a 2004 S80 2.5t. I got it with battery issues. Got that straightened out but the car still won't start. It will crank all day long but never fire up and run. I have determined it's not getting fuel. The only codes I have pertain to the SRS system in the driver's door. I did see one weird thing in Vida. While viewing the live data on the CEM I see CEM PIN Code ok = No. Did the CEM/ECM lose its synchronization?

Side note: Car has a K24 and green injectors on it. Previous owner was complaining about tuning being a pain and that he was "giving up". Car came with a laptop and mongoose cable. There are a lot of .bin files that appear to be from this car. I tried flashing the S80Stock.bin file but it didn't fix the issue.

I'm new to these Volvo's. Any direction on what to do would be much appreciated.
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Mr bell
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« Reply #2886 on: December 30, 2025, 12:23:08 PM »

Hello, first time poster here. Read most of this thread. There is a lot of good information here. I've mostly done tuning on old 90's Honda's and old (60's-70's) muscle cars.

Anyway, I have a 2004 S80 2.5t. I got it with battery issues. Got that straightened out but the car still won't start. It will crank all day long but never fire up and run. I have determined it's not getting fuel. The only codes I have pertain to the SRS system in the driver's door. I did see one weird thing in Vida. While viewing the live data on the CEM I see CEM PIN Code ok = No. Did the CEM/ECM lose its synchronization?

Side note: Car has a K24 and green injectors on it. Previous owner was complaining about tuning being a pain and that he was "giving up". Car came with a laptop and mongoose cable. There are a lot of .bin files that appear to be from this car. I tried flashing the S80Stock.bin file but it didn't fix the issue.

I'm new to these Volvo's. Any direction on what to do would be much appreciated.

I wouldn't be able to say for sure about what you might need to do to fix your issue, it doesn't sound like there's a problem with the cem itself, could be eeprom related?

The only thing I could suggest is to try read the eeprom, it's important to have anyway, incase the ecu gets bricked.
Perhaps reseat cem (again i don't think it's the problem) but worth a try.

You can do cem reloads, but I'd start with the eeprom.
Plenty people smarter than me on here, who would definitely know the score with this


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keichi
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« Reply #2887 on: January 02, 2026, 12:20:08 AM »

Hello, first time poster here. Read most of this thread. There is a lot of good information here. I've mostly done tuning on old 90's Honda's and old (60's-70's) muscle cars.

Anyway, I have a 2004 S80 2.5t. I got it with battery issues. Got that straightened out but the car still won't start. It will crank all day long but never fire up and run. I have determined it's not getting fuel. The only codes I have pertain to the SRS system in the driver's door. I did see one weird thing in Vida. While viewing the live data on the CEM I see CEM PIN Code ok = No. Did the CEM/ECM lose its synchronization?

Side note: Car has a K24 and green injectors on it. Previous owner was complaining about tuning being a pain and that he was "giving up". Car came with a laptop and mongoose cable. There are a lot of .bin files that appear to be from this car. I tried flashing the S80Stock.bin file but it didn't fix the issue.

I'm new to these Volvo's. Any direction on what to do would be much appreciated.

Basically ECU will cut fuel when:
- bin checksum is wrong
- Immo code mismatch

Assuming its not mechanical issue (fuel pump, injectors), maybe someone replaced ECU and didn't clone it properly (EEPROM with immo code).
Or.... flashed the bin without checksum?


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makgan21
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« Reply #2888 on: January 02, 2026, 11:59:17 AM »

Basically ECU will cut fuel when:
- bin checksum is wrong
- Immo code mismatch

Assuming its not mechanical issue (fuel pump, injectors), maybe someone replaced ECU and didn't clone it properly (EEPROM with immo code).
Or.... flashed the bin without checksum?




That's what I was thinking. I'm leaning toward the IMMO code mismatch but don't know how to fix it. I can activate the fuel injectors in Vida and I get a fuel smell. After doing each one the car tries to start but doesn't have enough fuel. So I know the pump itself works.
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Mr bell
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« Reply #2889 on: January 02, 2026, 01:17:15 PM »

That's what I was thinking. I'm leaning toward the IMMO code mismatch but don't know how to fix it. I can activate the fuel injectors in Vida and I get a fuel smell. After doing each one the car tries to start but doesn't have enough fuel. So I know the pump itself works.

As well as knowing spark plugs are firing, what were you using to flash with?
You can read/write with openmoose including eeprom.
Also has ecu recovery mode which i haven't needed, so don't know how it works, or if that will help.

I can't recommend openmoose enough, so much so that even though it's free, I feel i need to make a contribution  once I've recovered from the holidays, even if it is just a well earned stash of beer.

As I said I'm relatively new to all this, I couldn't tell you how to recover the immo if it's the problem.

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Mr bell
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« Reply #2890 on: January 02, 2026, 01:49:28 PM »

Has anyone made sense of mlhfm in euro qhhj sw?
It clearly isn't using the 200 mlofs for bosch sensors that I'm seeing on every other version.

My scale starts at 140 and ends at 318.8.
Interestingly if I subtract 200 off each cell it follows the exact same outputs until it stops about halfway.

140, -60 to 318.8, 118.8.
Other versions I see carry on to 1264.8.

Would this mean if I swapped to rs4 maf, I'd only input the rs4 sensor outputs to where my scale ends?
What accounts for the rest of the scale?

I'm finding qkhj much easier to translate what I'm learning, as it feels I'm going from s4wiki to volvo me7, then to volvo euro me7, which every now and then doesn't follow either

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makgan21
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« Reply #2891 on: January 02, 2026, 02:10:12 PM »

As well as knowing spark plugs are firing, what were you using to flash with?
You can read/write with openmoose including eeprom.
Also has ecu recovery mode which i haven't needed, so don't know how it works, or if that will help.

I can't recommend openmoose enough, so much so that even though it's free, I feel i need to make a contribution  once I've recovered from the holidays, even if it is just a well earned stash of beer.

As I said I'm relatively new to all this, I couldn't tell you how to recover the immo if it's the problem.



Openmoose is great!! I used it to try and get a read on the ecu. When I read the eeprom, I'm not sure it read correctly (or I just don't know how to decipher it). I've been trying to work with s60rawr on discord but my wife has been in and out of the hospital and I haven't been able to touch the car lately. Should be able to get to it tomorrow though.
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keichi
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« Reply #2892 on: January 03, 2026, 06:09:43 AM »

Has anyone made sense of mlhfm in euro qhhj sw?
It clearly isn't using the 200 mlofs for bosch sensors that I'm seeing on every other version.

My scale starts at 140 and ends at 318.8.
Interestingly if I subtract 200 off each cell it follows the exact same outputs until it stops about halfway.

140, -60 to 318.8, 118.8.
Other versions I see carry on to 1264.8.

Would this mean if I swapped to rs4 maf, I'd only input the rs4 sensor outputs to where my scale ends?
What accounts for the rest of the scale?

I'm finding qkhj much easier to translate what I'm learning, as it feels I'm going from s4wiki to volvo me7, then to volvo euro me7, which every now and then doesn't follow either


QHHJ is using MLOFS offset.
Factor for HFM conversion table (adc->flow) is 0.1
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Mr bell
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« Reply #2893 on: January 04, 2026, 06:10:16 AM »

QHHJ is using MLOFS offset.
Factor for HFM conversion table (adc->flow) is 0.1

Thank you, 0.1 is exactly right, it's just odd the numbers appear so different between versions,
I was getting confused with mlofs, as on qkhj xdf, it's defined.

I'm having a similar issue with kisrm, qkhj I can find, and adjust it.
On the qhhj xdf, it's missing, or at least I'm missing it.

So if the fr says I can adjust it, and it's not listed in the xdf, then is the xdf I'm using not fully defined?
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keichi
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« Reply #2894 on: January 05, 2026, 04:46:26 AM »

Thank you, 0.1 is exactly right, it's just odd the numbers appear so different between versions,
I was getting confused with mlofs, as on qkhj xdf, it's defined.

I'm having a similar issue with kisrm, qkhj I can find, and adjust it.
On the qhhj xdf, it's missing, or at least I'm missing it.

So if the fr says I can adjust it, and it's not listed in the xdf, then is the xdf I'm using not fully defined?


QHHJ and QKHJ have the same HFM maps - the same values
Btw. Why do you want to adjust KISRM?
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