Merlins openport ecuflash evo evo7 evo8 evo9 evoX tuning Guides PDF Print E-mail

Merlins EcuFLash Evo7 Evo8 Evo9 Tuning Guide

Merlins_Evo7_Evo8_Evo9_EcuFlash_Guide
Merlins EcuFlash EVO 7-8-9 TUNING GUIDE-V1.7a.pdf (right click and select Save-As)

Merlins EcuFLash Ralliart EvoX Mivec Tuning Guide
EvoXTuningGuide
Merlins EcuFlash EVO X TUNING GUIDE-VersionK.pdf (right click and select Save-As)

 

HowTo: Logging Wideband AFR via Rear O2 ECU ADC Input (Logging AFR without serial)

 

How To: Logging Wideband AFR via Serial Connection (AEM UEGO)

HOWTO: Enable Readiness for OBDII inspection after removing your o2 sensor

http://sevo.motionforum.net/tuning-f4/guide-how-to-tune-your-evo-ix-with-ecuflash-t15.htm

http://www.evoxforums.com/forums/showthread.php?t=15947

http://www.dsmtuners.com/forums/tuning-engine-management/311214-evoscan-ecuflash-tuning.html

http://evoecu.logic.net/wiki/Tuning

http://forums.evolutionm.net/evo-x-engine-management-tuning-forums/384411-definitive-ecuflash-evo-10-thread.html

http://forums.evolutionm.net/ecuflash/302895-how-tune-evo.html

http://www.2gstratus.org/forums/lofiversion/index.php?t34695.html

http://www.scoobypedia.co.uk/index.php/Knowledge/OpenECUTuningGuide

http://www.scoobypedia.co.uk/index.php/Knowledge/ECUFastLearningTrick


The equation used by early Chrysler speed density OBD II vehicles to establish initial pulse width is:
Injector Pulse Width = (RPM × MAP/BARO) × TPS × ECT × IAT × Battery Volts × O2 (Short Term x Long Term).
Once the vehicle is running and the engine control system enters closed-loop, the PCM relies
primarily on feedback from, the oxygen sensor to determine if the stoichiometric air/fuel ratio is being maintained.


You should be able to see the trim being used by logging MUT50 - same formula as the other trims...

You can log MAFHz with MUT1A (x*6.25) and then you should be able to see when the STFT drops to 0% (closed loop)
this shows the current trim on x
this is better
MUT0F = STFT
MUT0C = LTFT_Low (Usually Idle)
MUT0D = LTFT_Medium (Usual Cruise)
MUT0E = LTFT_High (Usually not used, but that's what this MOD is all about)
MUT50 = Copy of the trim currently in affect

 

 

Coming soon: guides on
SAS IDle screw: http://autorepair.about.com/library/faqs/bl620g.htm
ACD Air Bleeding
AYC Air Bleeding.

Updating the EvoScan Formula to get a perfect 0-100% throttle position value for your vehicle.
With the car running and your foot off the throttle look at throttle
position in the log window. My value was 36, lets call it Tc. Now turn
the engine off and then flip the ignition back to the on position
WITHOUT starting the motor. Press the pedal all the way to the floor and
record the value. Mine was 255. lets call it To.

Now subtract To - Tc --> 255 - 36 = 219 , lets call this value D = 219

So now we need the formula (( x - Tc) / D) * 100

My forumla for TPS looked like this:
((x-36)/219)*100
So just doubleclick on the value in the datalogging window and enter the formula into the eval field. The only variable is x which is raw throttle position from the ecu.Your TPS value in the logging window now reads 0 to 100 % if you did it right.

If you adjust your TPS position on the throttle body obviosuly you need to redo your calculation.



Engine Oil / Oil Temperature / Oil Pressure

The viscosity of engine oil is generally specified as a number, letter, number on the container, Like this:
5 w 40
The first number refers to the viscosity of oil in the engine when cold. The W stands for ‘winter’. Eg 5w. Lower ‘w’ numbered oils are usually better in the cold and more efficient. The second number is the viscosity rating at normal engine operating temperatures.
Your manufacturer’s handbook will specify acceptable type of oil to use. Some car manufacturers produce their own oils specially formulated to protect their engines. Volvo, Audi and BMW for example. Using the manufacture’s oil can prolong the life of the engine by providing better protection.

Some Extra formulas posted on the forums that are not yet added to the current EvoScan version will be found here:
DataListItem DataLog="Y" Color="" Display="Gear" LogReference="Gear" RequestID="40" Eval="x" Unit="units" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="300" ChartMin="0" ChartMax="300" ScalingFactor="1" Notes="" Priority="5" Visible="False"
DataListItem DataLog="Y" Color="" Display="RPM_SPEED_RATIO_AVERAGE" LogReference="RPM_SPEED_RATIO_AVERAGE" RequestID="42" RequestID2="43" Eval="x/36.37" Unit="rpm/kph" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="300" ChartMin="0" ChartMax="300" ScalingFactor="1" Notes="" Priority="1" Visible="False"
DataListItem DataLog="Y" Color="" Display="Airflow Rate gm/s" LogReference="gmas" RequestID="00" RequestID2="01" Eval="x*0.0236" Unit="gm/s" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="10000" ChartMin="0" ChartMax="10000" ScalingFactor="1" Notes="" Priority="4" Visible="False"
DataListItem DataLog="Y" Color="" Display="Load 1Byte" LogReference="Load" RequestID="41" Eval="1.3*x" Unit="load" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="300" ChartMin="0" ChartMax="300" ScalingFactor="1" Notes="Displays state of the throttle. High voltage or % value means a more open throttle. When logging engine activity (especially on the dyno), it is useful to log throttle position. This makes it easy to see when a power run begins and ends i.e. when the driver's foot is depressing the accelerator fully. Some mitsubishis show up to 20% when your foot is off the accelerator, and will show a max of 90-99% when your foot is fully applied, this is normal.
" Priority="1" Visible="False"
DataListItem DataLog="Y" Color="" Display="Airflow 2Byte" LogReference="AirFlow2Byte" RequestID="02" RequestID2="03" Eval="6.29*x/64" Unit="Hz" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="3000" ChartMin="0" ChartMax="2500" ScalingFactor="0.1" Notes="" Priority="4" Visible="False"
DataListItem DataLog="N" Color="" Display="Airflow Rate lb/min" LogReference="lbamin" RequestID="00" RequestID2="01" Eval="0.00312*x" Unit="lb/min" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="10000" ChartMin="0" ChartMax="10000" ScalingFactor="1" Notes="" Priority="1" Visible="False"
DataListItem DataLog="N" Color="" Display="Mileage Gasoline" LogReference="mpg" RequestID="CALC" Eval="5.9*[Speed]*[AFRMAP]/[lbamin]" Unit="mpg" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="10000" ChartMin="0" ChartMax="10000" ScalingFactor="1" Notes="" Priority="1" Visible="False"
DataListItem DataLog="N" Color="" Display="Mileage E85" LogReference="mpge" RequestID="CALC" Eval="4.18*[Speed]*[AFRMAP]/[lbamin]" Unit="mpg" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="0" GaugeMax="10000" ChartMin="0" ChartMax="10000" ScalingFactor="1" Notes="" Priority="1" Visible="False"
DataListItem DataLog="Y" Color="" Display="OMNI MAP" LogReference="OMNIMAP" RequestID="38" Eval="0.2369*x-14.7" Unit="psig" MetricEval="" MetricUnit="" ResponseBytes="1" GaugeMin="-15" GaugeMax="42" ChartMin="-15" ChartMax="42" ScalingFactor="1" Notes=""
Last Updated on Tuesday, 09 August 2016 08:55
 
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