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Author Topic: Ecu Tuning  (Read 17749 times)

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Re: Ecu Tuning
« Reply #210 on: February 03, 2013, 10:14:09 AM »
Almost all maps are off scale. This should not bothers you in terms of data logging. You can flash the ROM back and start data logging.
At least find your MUT table as described in another thread here. You will need it for building Mode23 definition for EvoScan.

great thx and I have already enabled mode23.  just need to flash back to car.  how do i go about fixing the scaling?   i just don't know where to look for a new address for the scaling.  i would like to be correct so i know what the heck is going on where...

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Re: Ecu Tuning
« Reply #210 on: February 03, 2013, 10:14:09 AM »

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Re: Ecu Tuning
« Reply #211 on: February 03, 2013, 10:17:23 AM »
great thx and I have already enabled mode23.  just need to flash back to car.  how do i go about fixing the scaling?   i just don't know where to look for a new address for the scaling.  i would like to be correct so i know what the heck is going on where...

Send email to Golden (http://goldenevo.com/). He is a nice guy, I'm pretty sure he will be able to help you building a fresh definition file.

P.S. Don't forget to send him donation if you are happy with the result.

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Re: Ecu Tuning
« Reply #212 on: February 03, 2013, 10:39:18 AM »
Send email to Golden (http://goldenevo.com/). He is a nice guy, I'm pretty sure he will be able to help you building a fresh definition file.

P.S. Don't forget to send him donation if you are happy with the result.


great!  thanks again!

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Re: Ecu Tuning
« Reply #213 on: February 25, 2013, 07:14:06 PM »
I've sent golden many emails and still no reply.
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Re: Ecu Tuning
« Reply #214 on: February 25, 2013, 07:52:31 PM »
he replied to me once but thats it no updates since original inquiry

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Re: Ecu Tuning
« Reply #215 on: February 26, 2013, 02:10:56 AM »
Just to let you guys know, a few months ago I emailed golden and he replied with he doesnt tune regular lancers. But if you guys get a tune be sure to let me know, I am willing to pitch in for a tune if a price will buy.

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Re: Ecu Tuning
« Reply #216 on: March 28, 2013, 12:18:20 PM »
I have been digging around in my ROM looking for undefined useful stuff.  I think I may have found something, but I am not entirely sure what.  I’ve included my best guesses.  These are all related tables that deal with airflow and/or torque.  I hope to find something that would explain why we keep seeing the same numbers regardless of mods.  Any thoughts or theories are more than welcome.

I have noted several distinct combinations of maps used in the NA Lancers.  They are as follows:  High/Low, and Hot/Warm-up.  The terminology changes a lot between definitions, but typically there are 4 maps for a given control group.  I try to isolate the High-Hot map since I feel the car should be able to warm-up properly before I start hammering on it.

With all of these, the scaling may be incorrect.  The values are typically uint8.  I expect all these values to be in metric.  Most of these examples are compared to the evo x and ra maps for similarity.  Scalings were assigned based on the “TableType/Y-Axis/X-Axis/Elements” values of the table header.

This is group one of two groups that are extremely similar.  They may be identical, but I have yet to do a direct compare of both groups.

Image 1:  This looks very similar to the Torque Limiter tables used in evo x and ra.


Image 2: This table looks a lot like a Target Load table.  The peak value in this table is 238, which when assumed to be Nm, converts to 175.5 ft/lbs.  I will compare this table to the 4b11 and see if the theory has more to it.  This is listed as a turbo related table, but I expect is relevant to NA engines as well.   This map has an identical copy in this grouping.


Image 3: I have no idea what this table is.  It looks to me like the torque bands we see on dynos, but it could be airflow, which is related to torque.  Whether this is an airflow limit, or an expected airflow table, I just don’t know.  I intend to play with this table in the near future and see if I can prompt an error code to get a better idea.  This map also has an identical copy in this grouping.


Image 4: Again, I’ve no clue what this is about, but it’s in the right section of the ROM to be here.


Image 5: This looks just like a Flow Check table to me.  I will be digging for the scaling later.

« Last Edit: March 28, 2013, 12:20:24 PM by somedood451 »
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Re: Ecu Tuning
« Reply #217 on: March 28, 2013, 01:52:44 PM »
Great find! There are many possibilities as to what they could be. I remember there being a couple different tables for spark and fuel. Warm up was definitely on fuel, timing, MIVEC etc...

If this was a CVT or TC-SST, I could see there being tq limits, but not on manuals.

Although, these cars have it easy with these tables. On new Fords, there can be up to 36 different spark tables. Now thats complicated!

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Re: Ecu Tuning
« Reply #218 on: March 28, 2013, 07:55:40 PM »
Great find! There are many possibilities as to what they could be. I remember there being a couple different tables for spark and fuel. Warm up was definitely on fuel, timing, MIVEC etc...

If this was a CVT or TC-SST, I could see there being tq limits, but not on manuals.

Although, these cars have it easy with these tables. On new Fords, there can be up to 36 different spark tables. Now thats complicated!

I'm starting to think that the transmission type isn't so important between NA roms.  I will have to verify this against my wife's rom when I bring that up parallel with where mine is at.  It may just be a matter of if it's used or not.

36 tables is a lot for spark.  I think ours have 4, main & accel, high & low.  I expect they're working on the same basic design, but with a lot greater granularity.  It could depend on a whole lot.  It seems like every time they say IF, they really mean TIMES(x).
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Re: Ecu Tuning
« Reply #219 on: March 29, 2013, 06:18:55 AM »
Yea, there is a lot of interpolation going on. Keep us posted on your research.

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Re: Ecu Tuning
« Reply #220 on: April 04, 2013, 06:39:08 PM »
Ok, so after looking at things a lot, I went ahead and messed with these maps.  Specifically, I copied them over from my wife's 2.0 CVT.  There were some differences.  Less power for sure, but a much smoother torque line.  I copied 7 maps over, so I am not sure which of those did something, or if they all did, or in some combination.  Just seeing an effect without CEL was nice.  I will be working on narrowing down what these maps do, and if I can get them to go the other way.  As there are two sets of these maps, they could be related to transmission function.  It's really hard to say for sure.

There are a *lot* of 3D tables left completely undefined in our roms with no relation to the EVO and RA.  If anyone else out there is capable and interested in digging out scalings or defining tables accurately, I would be happy to have the help.  This would make a good school project if any of you are trying to get into the field of reverse engineering.
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Re: Ecu Tuning
« Reply #221 on: April 10, 2013, 03:16:16 AM »
Sidetracking a bit from this great thread, I've begun reading Merlin's guide and would require a little guidance here to get me up to speed. On most tables I see RPM vs load. I know what's RPM but am not sure what load corresponds to. In NA roms, I see a value up to 100 but in Evo X roms, the value can go up to 300+.

Any clarification or links would be most helpful.

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Re: Ecu Tuning
« Reply #222 on: April 10, 2013, 04:42:12 AM »
Sidetracking a bit from this great thread, I've begun reading Merlin's guide and would require a little guidance here to get me up to speed. On most tables I see RPM vs load. I know what's RPM but am not sure what load corresponds to. In NA roms, I see a value up to 100 but in Evo X roms, the value can go up to 300+.

Any clarification or links would be most helpful.
Load is calculated value which depends on many parameters - MAF, MAP, IAT, Baro, ECT, etc.
If I can say it more meaningful, it's a primary value which tells you how much work your engine is doing.

Loads around 90 and higher are on boost. As the boost raises the load raises too.

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Re: Ecu Tuning
« Reply #223 on: April 10, 2013, 06:45:04 AM »
Load is calculated value which depends on many parameters - MAF, MAP, IAT, Baro, ECT, etc.
If I can say it more meaningful, it's a primary value which tells you how much work your engine is doing.

Loads around 90 and higher are on boost. As the boost raises the load raises too.

wow interesting. could i have an estimate load value on these couple of scenarios?

1. NA Lancer at idle vs Evo X

2. NA Lancer cruising on the highway vs Evo X

3. NA Lancer half throttle vs Evo X

4. NA Lancer WOT vs Evo X

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Re: Ecu Tuning
« Reply #224 on: April 10, 2013, 07:03:14 AM »
wow interesting. could i have an estimate load value on these couple of scenarios?

1. NA Lancer at idle vs Evo X

2. NA Lancer cruising on the highway vs Evo X

3. NA Lancer half throttle vs Evo X

4. NA Lancer WOT vs Evo X
I don't have a log with load values on NA Lancer. I can tell you how are mine right now.

Idle: 20 - 40
Cruising: 60 - 70
Start making boost: 90
7 psi: 140
11 psi: 160
14 psi: 190

All the loads varies depending on the conditions, these are round values.

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Re: Ecu Tuning
« Reply #224 on: April 10, 2013, 07:03:14 AM »

 

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