NefMoto > Technical > Tuning > The Volvo ME7 thread:
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Caide
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« Reply #2910 on: April 06, 2026, 10:05:10 PM »
Quote from: keichi on March 29, 2026, 06:44:21 AM
0x18FB3
Bitflipping to 0 keeps the neutral limiter
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keichi
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« Reply #2911 on: April 07, 2026, 05:19:28 AM »
Quote from: Caide on April 06, 2026, 10:05:10 PM
Bitflipping to 0 keeps the neutral limiter
What do you mean by "neutral limiter"? What rpm do you hit, at which gear level position?
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Caide
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« Reply #2912 on: April 08, 2026, 05:36:02 AM »
Quote from: keichi on April 07, 2026, 05:19:28 AM
What do you mean by "neutral limiter"? What rpm do you hit, at which gear level position?
The 4000RPM limiter in N and P, I can adjust that easily enough by changing 0x01B5AE and 0x01B5BE, but I believe there are torque limits on these gears as well. as I undertand it chaging AUTGET from 1 to 0 will switch to a manual map instead
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keichi
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« Reply #2913 on: April 09, 2026, 06:36:02 AM »
Quote from: Caide on April 08, 2026, 05:36:02 AM
The 4000RPM limiter in N and P, I can adjust that easily enough by changing 0x01B5AE and 0x01B5BE, but I believe there are torque limits on these gears as well. as I undertand it chaging AUTGET from 1 to 0 will switch to a manual map instead


0x1B5AE is rev-limiter for gear 0 (N/P) when autget=1 and speed sensor error. Its limp-home map. No need to touch that.
0x1B5BE is "normal" rev limiter for gear 0. But that one is independent of autget.

Just change 0x1B5BE and that's all. No rev limiter on neutral regardless the gearbox.
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Caide
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« Reply #2914 on: April 09, 2026, 10:37:50 PM »
Quote from: keichi on April 09, 2026, 06:36:02 AM
0x1B5AE is rev-limiter for gear 0 (N/P) when autget=1 and speed sensor error. Its limp-home map. No need to touch that.
0x1B5BE is "normal" rev limiter for gear 0. But that one is independent of autget.

Just change 0x1B5BE and that's all. No rev limiter on neutral regardless the gearbox.
This is for a manual swap, would just lifting the rev limiter work or would there also be boost/torque limits if the ECU is always in gear "0"?
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keichi
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« Reply #2915 on: April 12, 2026, 05:15:27 AM »
Quote from: Caide on April 09, 2026, 10:37:50 PM
This is for a manual swap, would just lifting the rev limiter work or would there also be boost/torque limits if the ECU is always in gear "0"?


Lifting rev limiter would... lift rev limiter.
With ATCONF=1 TCM sends CAN requests to ECM to limit torque in certain conditions.
With ATCONF=0 ECM limit torque based on fixed values (on each gear) - usually on stock sw 1st gear only.
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Caide
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« Reply #2916 on: April 13, 2026, 11:11:48 AM »
Quote from: keichi on April 12, 2026, 05:15:27 AM
Lifting rev limiter would... lift rev limiter.
With ATCONF=1 TCM sends CAN requests to ECM to limit torque in certain conditions.
With ATCONF=0 ECM limit torque based on fixed values (on each gear) - usually on stock sw 1st gear only.
Sorry I think there is some confusion, I was trying to say that 0x18FB3 is not ATCONF as switching it keeps the auto characteristics, so failing finding ATCONF I was looking to modify the bin to work as a manual
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s60rawr
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« Reply #2917 on: April 16, 2026, 06:22:39 PM »
for manual swaps why not just flash the correct base software for that  motor / trans combo? then edit the cem config. and bam.
then get to tuning like normal on there.

ya'll overcomplicate shit like its rocket science.
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Quote from: dream3R on August 04, 2011, 11:02:11 AM

There is a free flash suite in progres

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

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keichi
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« Reply #2918 on: Yesterday at 07:27:15 AM »
Quote from: Caide on April 13, 2026, 11:11:48 AM
Sorry I think there is some confusion, I was trying to say that 0x18FB3 is not ATCONF as switching it keeps the auto characteristics, so failing finding ATCONF I was looking to modify the bin to work as a manual

0x18FB3 is ATCONF for 100%

What do you mean by "switching it keeps the auto characteristics"?

Just set ATCONF=0 and that basically makes the whole tune MAN version.
All other maps has tiny almost not relevant differences between MAN/AUT tunes.
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