Does anyone know the address for the 3 column thermo fan map for 97250001 please?

 

My 3 column map is all screwed up i really need the correct address, the temp looks right along the left, if anyone can help it would be much appreciated.

 

It's at 4ac8

From the previous page, the Decel Fuel Cut is based on the Target Idle speed and is calculated with an offset (RPM amount) to give a point where the injectors will turn back on. There is a hysterisis amount that tells the system to cut injectors when the rpm is a certain amount above this calculated amount. So if you are cruising at an rpm below this the Decel Fuel Cut will not turn on, but giving it a light blip of the throttle can bring rpm high enough to activate it.

 

Thanks much appreciated

 

BUMP: just 'caus I like this thread and want to find it easily.
Lotsa good stuff in here.
And Im trying to get ontop of A/C fan control re the two speed fan motor and relays.

 

They are PWM driven, not 2-speed, so changing the duty changes the fan speed. Do you have the maps for your rom, most roms have 2 but I have seen some roms with them all in one place?

Each rom may also have differenty conditions for the x-axis too. For my rom the 3 column map was only in use when stationary and very low road speed. The next 9-column map came into use at 22,52,and 82km/h. Someone may need to spend alot more time on the code compared to what I have, most of my info was found through testing.

 

Originally Posted by Mattjin
Thermo Fan map for 88590015:

<scaling name="Percent (128)" units="%" toexpr="x/1.28" frexpr="x*1.28" format="%.0f" min="0" max="100" inc="1" storagetype="uint8" endian="big"/>

<table name="Thermo Fan Duty" category="Misc" address="4012" type="3D" level="2" swapxy="true" scaling="Percent(128)">
<table name="Conditions" type="Static X Axis" elements="9">
<data>On1</data>
<data>On2</data>
<data>On3</data>
<data>Off1</data>
<data>Off2</data>
<data>Off3</data>
<data>A/C1</data>
<data>A/C2</data>
<data>A/C3</data>
</table>
<table name="Engine Temp" address="7034" type="Y Axis" elements="12" scaling="Temp"/>
</table>

Don't forget to add the Percentage Scale posted elsewhere on this thread.

I just added this to my 0015 rom and opened up ecuflash and there was no table at all... "the scaling" def. belongs in the "9base" correct?

from this thread I was able to get (for my rom) "warm up retard temp", "ignition coil charge time", "base low coolant", "high octane egr enable adv."

I was unable to find (for my rom) "ignition charge time", " limp home tps fuel table" (hope I wont need this), "decel fuel cut delay" and "ignition trim vs. engine temp". Does any have these for 88590015?

TIA

 

Matt, the evo9 wiring diagram (that I have a pdf of) shows the AC fan as a two winding unit with two relays driving it.
No speed controller box as per the main fan.
So I am confused.

I have found the fan tables for the 88580013, played with the main fan settings in December from memory.
But I did not try adjusting the AC fan settings.
Just confirmed my AC fan has three wires, as per the wiring diagram.
Its a puzzle!

 

The A/C fan itself may be different, but definitely the main fan is PWM.

 

bump for a response to post # 277....

 

Yes Matt, its only the AC fan I'm buzzed about.
Will try to scope it out some on the weekend if not too busy.
Maybe replace one of the relays with a power PNP transistor etc for PWM drive.

 

For 88590015:

<table name="Fuel Limp Table" category="Fuel" address="31ab" type="3D" level="2" swapxy="true" scaling="uint8">
<table name="TPS" address="6fc6" type="X Axis" elements="7" scaling="Volts16"/>
<table name="Engine Speed" address="6fb2" type="Y Axis" elements="5" scaling="RPM"/>
</table>


<table name="Ignition Charge Time" category="Timing" address="3cc6" type="2D" level="2" scaling="uint8">
<table name="Battery" address="6e0c" type="X Axis" elements="9" scaling="BatteryVoltage"/>
</table>


The same old warning applies here. DO NOT PLAY WITH THESE MAPS UNLESS YOU KNOW EXACTLY WHAT YOU ARE DOING!

 

Mattjin......any chance of finding the LTFT crossover points? I ask because it would help those of us with hard intake pipes and cams to idle with a MAF by uping the LTFT low crossover point.

 

For 88590015: The Decel maps

<table name="Decel Fuel Cut Delay #1" category="Fuel" address="3d6e" type="2D" level="2" scaling="uint8">
<table name="Engine Load" address="6fc6" type="X Axis" elements="7" scaling="Load"/>
</table>

<table name="Decel Fuel Cut Delay #2" category="Fuel" address="3d82" type="2D" level="2" scaling="uint8">
<table name="Engine Load" address="6fc6" type="X Axis" elements="7" scaling="Load"/>
</table>

<table name="Decel Fuel Cut Retard" category="Timing" address="3da2" type="2D" level="2" scaling="Timing">
<table name="Engine Speed" address="6b7a" type="X Axis" elements="10" scaling="RPM"/>
</table>

 

The proper fix is to tune the car properly. You should be disabling the closed loop (easy to just set the min temp to 110C) and then do your tuning.

I have found a bunch of the closed loop control, but nothing to do with trim levels just yet.