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Author Topic: The Volvo ME7 thread:  (Read 934162 times)
contrast
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« Reply #600 on: April 19, 2015, 01:49:11 AM »

If you reqd through this thread and try and put some effort into it, you'll probably find maps needed for stage 2 tune. Speed limit removal can also be done
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Opti
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« Reply #601 on: April 19, 2015, 08:09:17 AM »

So I've been making some progress on my Stage 1 tune for my V70 2.5t -99. After lowering the values in the second to last columns of KFMIOP I have got rid of the torque monitoring DTC that was set in the ECU on WOT at around 3200 rpm after increasing the load cap in LDRXN. However I still see a large timing pull at WOT and I'm not quite sure what's causing it. It is the same as before I lowered the values in KFMIOP. The only modified tables at the moment are LDRXN and KFMIOP. KFZW is stock and if I've understood ME7 correctly then the ECU should be aiming for the values in that table at the specified load/rpm right?

Right now I'm seeing timing being retarded to around 3-6 degrees before TDC, so that is around 10 degrees being pulled when looking at KFZW and ~140 load which is what I'm requesting. As soon as I go WOT the timing is pulled. I guess it could be detonation but from what I've heard Volvo ran very conservative stock timing in these engines.

Any hints? Smiley

I've attached my KFMIRL, KFMIOP and KFZW tables.
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dream3R
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« Reply #602 on: April 19, 2015, 08:16:12 AM »

Are you sure KFZW is correctly defined?

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How to work out values from an A2L Smiley

http://nefariousmotorsports.com/forum/index.php?topic=5525.msg52371#msg52371


Starting Rev's http://nefariousmotorsports.com/forum/index.php?topic=5397.msg51169#msg51169

noobs read this before asking http://nefariousmotorsports.com/forum/index.php?topic=9014.0title=


ORGORIGINAL 05 5120 creator for Volvo
ORIGINAL Datalogger (Freeware) Author
ORGINAL finder of the 'extra' torque' limits
I don't have ME7.01 A2L I just use ID
Opti
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« Reply #603 on: April 19, 2015, 09:33:12 AM »

Can't say I'm 100% sure but it has the same pattern as the V70R Damos file I've been using for reference in finding maps. Did a comparison to an Audi map off the forum just now and that pattern seems similar as well. Datalogs from reference pulls on all stock calibration seem to follow my KFZW on WOT.

VIDA "log" from pull with stock SW.

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fredrik_a
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« Reply #604 on: April 20, 2015, 03:14:43 AM »

At what RPM do you have 3-6 degrees iginition angle?
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pes32
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« Reply #605 on: April 20, 2015, 07:56:17 AM »

fredrik_a hello my dear friend!
you help me with the stage 2? help with finding cards for my car
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Opti
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« Reply #606 on: April 20, 2015, 09:19:34 AM »

At what RPM do you have 3-6 degrees iginition angle?


Timing usually drops when going WOT at around 3000 rpm. But upon reviewing some more logs today I found that the amount of retard varies somewhat between pulls. Sometimes I see a 10 degree pull and other times it's just 6 degrees etc. I've only got logdata from the Torque app since making the changes in KFMIOP and I've only managed to log at 1 Hz. I think I need to get some VIDA logs with pulls from around 2500 rpm to 5500 rpm at least to get further with the analysis. I'll be back Smiley

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Opti
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« Reply #607 on: April 21, 2015, 10:04:06 AM »

Some logs from today (from android Torque):

Logging frequency is only around 1.3Hz :/

Timing is definitely better than before KFMIOP changes. But the question remains whether the timing is correct for my KFZW and corresponding load. I have a feeling I might cap requested load somewhat due to the lowering of KFMIOP, see diff image of KFMIOP.

If I've understood correctly the output from LDRXN for a specific rpm is used as input to KFMIOP to cap requested torque which is then used as input in KFMIRL to generate requested load (simplified version as iirc there are more caps limiting load). Then the torque monitoring verifies that the actual torque is not higher than the requested torque. Have I got this right? Smiley
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fredrik_a
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« Reply #608 on: April 22, 2015, 04:45:41 AM »

A log with requested load vs actual load would be nice as well. If that's not available, please post your LDRXN curve and measure boost manually vs rpm. From there we can make a rough estimate allthough proper logging is the best way to move forward.
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Opti
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« Reply #609 on: April 22, 2015, 09:51:47 AM »

Okay thanks for your input Smiley I'll get a VIDA log with boost in order to try to estimate the actual load.

Any tips regarding proper logging for these early ME7 volvos? Is the following thread applicable http://nefariousmotorsports.com/forum/index.php?topic=2349.0 ?

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daniel2345
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« Reply #610 on: April 22, 2015, 11:51:25 AM »

May i answer your question regarding that thread with a question also?

Is your Volvo a VW/Audi Car? Wink
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Opti
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« Reply #611 on: April 22, 2015, 12:51:44 PM »

I keep hearing that ME7 is ME7 so... Smiley
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daniel2345
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« Reply #612 on: April 22, 2015, 12:54:09 PM »

Then better not listen to that... Wink
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dream3R
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« Reply #613 on: April 22, 2015, 02:09:26 PM »

I'm confused lol
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How to work out values from an A2L Smiley

http://nefariousmotorsports.com/forum/index.php?topic=5525.msg52371#msg52371


Starting Rev's http://nefariousmotorsports.com/forum/index.php?topic=5397.msg51169#msg51169

noobs read this before asking http://nefariousmotorsports.com/forum/index.php?topic=9014.0title=


ORGORIGINAL 05 5120 creator for Volvo
ORIGINAL Datalogger (Freeware) Author
ORGINAL finder of the 'extra' torque' limits
I don't have ME7.01 A2L I just use ID
toca
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« Reply #614 on: May 02, 2015, 08:30:41 AM »

Somebody please help find limiter for 1 and 2 gears. I found KFMDBGRG but boost is not maxxed in first gears.

Thank you all!
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