NefMoto > Technical > Tuning > The Volvo ME7 thread:
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Author Topic: The Volvo ME7 thread:  (Read 931725 times)
jahko
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« Reply #1425 on: May 25, 2021, 02:08:28 PM »
Great to see work being done. Could you please tell us a bit more about what you did with the immo? I've got one I'd like to clone but so far haven't had any success writing to the spare.
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acoffinship
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« Reply #1426 on: May 26, 2021, 05:33:03 AM »
Quote from: jahko on May 25, 2021, 02:08:28 PM
Great to see work being done. Could you please tell us a bit more about what you did with the immo? I've got one I'd like to clone but so far haven't had any success writing to the spare.

It's really easy. Same procedure as you would boot for reading/writing flash.

I've downloaded ME7eeprom tool from here:
http://nefariousmotorsports.com/forum/index.php?topic=1168.0
If you prefer GUI, there's a version of it somewhere in the thread. You have to use ME7eeprom v1.40.

I've used the following parameters to read immo data (check attachment). Make 2-3 reads and compare the reads just in case.
For writing data, same parameters except -w instead of -r.

ME7gui somehow works slowly when cmd opens, so I copy cmd code from ME7gui, paste in the code to a cmd window. Then boot my ECU - connect gnd to pin 24, count to 6-7 secs and just after releasing gnd from pin I press ENTER.

When writing, ME7eeprom writes the immo data properly but verification always fails. Don't mind that and just test the ECU in the car.
I also re-read the immo data from cloned ECU for comparison.
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jahko
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« Reply #1427 on: May 30, 2021, 07:26:21 AM »
Thanks, I've read one ecu and written to another with the eeprom tool about 2 years ago but it didn't run the car and I didn't look into why other than seeing CSpin being different on different ecus, I should have another go really. What are the part numbers you're working with?
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vwdenisvw
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« Reply #1428 on: June 16, 2021, 02:16:18 AM »
Quote from: keichi on May 25, 2021, 03:11:01 AM
Ok. I figured out how to force lean drive.

Thanks a lot for the name of the maps! Everything worked great!
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Volvo S60 2001 2.0T=>2.3T5
vwdenisvw
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« Reply #1429 on: June 16, 2021, 02:23:00 AM »
Soft_launch (Soft Limiter)

Information taken from here

http://nefariousmotorsports.com/forum/index.php?topic=151.0

CWNMAXMD - Codeword for RPM limiter (We already use 1).
VNMX - The vehicle speed for activating the normal rev limit. Set this as low at it goes (1.25 km/h).
DNMAXH - This is the RPM above rev limit when the fuel cut comes on. Tweaking this helps make more boost on the limiter. I use 15 RPM.
ITNMXH - Dwell time under lower limit before activating the upper limit. Set to 0.
NMAX - Ends up being the launch RPM. I use 3200 RPM.
NMAXOG - This is the raised RPM limit which becomes the standard limit. Set to your desired redline. Standard value 2.3T5 6650 RPM.
TMOTNMX - Coolant temp for activating raised (normal) rev limit. Set this at -48 so that you can rev past the low limit while car is warming up.
TNMXH - This is the time duration of the raised (normal) rev limit. Set this to its maximum value of 655.3500 seconds (ff).

It remains to find only normal tires))

https://www.youtube.com/watch?v=JSVsEEh_c6k
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Volvo S60 2001 2.0T=>2.3T5
vwdenisvw
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« Reply #1430 on: June 16, 2021, 02:27:01 AM »
Overboost+dlamob

My friend and I still managed to activate this function)
The following maps were found:

GWPLDOB - gradient of angle of pedal to start overboost (2000 %/s)
KFLDRXO - Delta load (rL) at overboost condition
TABLDOBN - regulation time for overboost
TLDOBAN - Processing time for overboost active
TLDOBN - Lock time for overboost
KFFLDEO - Factor for boost pressure correction to overboost value by knock control
DLAMOB - Delta lambda during overboost

Basic maps for activation:

To begin with, I returned the LDRXN map to standard values.

GWPLDOB - The stock is set at 2000% / s, i.e. this function is unrealistic to activate. I set 120 %/s. This does not accidentally trigger overboost.
KFLDRXO - Here we adjust the increase in load. This is the drlmaxo value added to rlmx_w.
TABLDOBN - Set the time to 40 seconds.
DLAMOB - adjusted for a afr of 0.85-0.87.

For myself, I made overboost activation from 3000 rpm.
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Volvo S60 2001 2.0T=>2.3T5
Ihlberg82
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« Reply #1431 on: July 16, 2021, 10:56:36 PM »
Anyone here with good knowledge of the 2.4t LPT fitted in a C70 1999

I'm looking for someone to help me tune my car.
Not for free of course.
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jahko
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« Reply #1432 on: July 18, 2021, 02:30:29 AM »
Quote from: Ihlberg82 on July 16, 2021, 10:56:36 PM
Anyone here with good knowledge of the 2.4t LPT fitted in a C70 1999

I'm looking for someone to help me tune my car.
Not for free of course.

post your file and what you've found so far
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thedrill
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« Reply #1433 on: August 04, 2021, 05:19:04 PM »
Could any of you kind gentlemen please tell me where DSLOFS/DSLGRAD are in this file.

Thanks.
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_nameless
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« Reply #1434 on: August 05, 2021, 08:49:42 AM »
Quote from: thedrill on August 04, 2021, 05:19:04 PM
Could any of you kind gentlemen please tell me where DSLOFS/DSLGRAD are in this file.

Thanks.

Around 15e60 if i had to guess
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thedrill
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« Reply #1435 on: August 05, 2021, 09:08:43 AM »
Does not seem correct..
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prometey1982
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« Reply #1436 on: August 10, 2021, 09:11:34 AM »
Quote from: thedrill on August 04, 2021, 05:19:04 PM
Could any of you kind gentlemen please tell me where DSLOFS/DSLGRAD are in this file.

Thanks.
ROM:00016F82 DSLGRAD:        dw 0A4B5h
ROM:00016F84 DSLOFS:         dw 0FCD3h
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prometey1982
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« Reply #1437 on: August 10, 2021, 09:12:58 AM »
multipler of DSLGRAD is 0,015625
multipler of DSLOFS is 0,039063 value is signed.
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thedrill
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« Reply #1438 on: August 10, 2021, 01:58:27 PM »
Perfect, Thanks you sir.
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prometey1982
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« Reply #1439 on: August 12, 2021, 07:56:21 AM »
New result. Fan start temperature was lowered to 95 degrees.
There are two maps in Volvo BINs. They can be found by next bytes sequence
6   64   203   204   215   221   222   0   0   20   180   221   221
Axis values is motor temperature. Multipler is 0.75 offset is -48. By lowering these values start fan temperature can be lowered.

https://youtu.be/fHRiJQfv_tI
« Last Edit: August 12, 2021, 07:58:55 AM by prometey1982 » Logged
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