Evening All !

[Sideways Steve]

Hey folks, eventually got off my arse and logged in here after a few folk told me about it on MLR.

Also had some good advice from Gray too so thought Id see what this place was like :)

I have had some mapping experience with various other cars using Apexi PFC and Greddy Emanage however not ever done an Evo or used the Flash method.

Id imagine its not too hard but will obviously be a little different to Live mapping so Im here to learn all I can and tweak a few points on my Evo VI

Been having a look and seems an excellent forum with good info and friendly members :smile:

[BONGO]

hey steve welcome to the forum

newbie myself but already had plenty of helpfull advice and loads of information to read up on

[HermaN]

Alright steve! I know you will know some of this already, but have just decided to copy & paste it from my other post, should help you on you way.....

Have a good read of this (http://forums.evolutionm.net/ecuflash/201146-ecuflash-tutorial-beginners.html) and this (http://forums.evolutionm.net/ecuflash/302895-how-tune-evo.html) and make sure you understand it before doing anything! They are just the basics, but will help you on your way.

You will need a tachtrix open port 2.0 cable to map & log your car. Get hold of ECUflash from http://www.openecu.org/ and EvoScan from http://www.limitless.co.nz/Evoscan

EvoScan is used for logging data to check everything is running right and ECUflash is for the actual mapping.

On top of that you will need a wideband. For a perminant install go for an LC-1, I opted for an LM-1, because I didn't want a perminant install.

Everything can be bought from Grant620 on here & MLR or from his site http://www.gb-ent.com/

When logging remember to log the following....


knocksum, TPS, RPM, battery, timing advance, inj pulse width, inj duty cycle, ECUload, load calc, octaneflag, AFR MAP & external wideband (if possible)

For mapping the absolute minimum you will need is a tactrix Open Port 2.0 (http://www.gb-ent.com/store/innovate-motorsports/openport-2.0-with-adapter-set.html) (£165), ECUflash (http://www.openecu.org/index.php?title=EcuFlash) (free), EvoScan (http://www.limitless.co.nz/Evoscan/) ($25 download) & a wideband of some sort (LC-1 + gauge (http://www.gb-ent.com/store/innovate-motorsports/innovate-motorsports-lc1%10db-kit.html) (£195) & LM-1 (http://www.gb-ent.com/store/innovate-motorsports/innovate-motorsports-lm%111-basic-kit-%11special-offer.html) (£199) are the 2 favourites).

Hope that helps! :>

[Sideways Steve]

Hey bud !

Well got the LM-1 as you know, also now have the software on my work and G/F's laptops but not on my mac yet as its being a right PITA !!!

Just downloaded all the VI maps off here for a look through.

The ECUFlash software looks pretty damn good ! Im very im pressed ! It actually looks more in depth than the Apexi PFC Stuff !

I take it theres no "map trace" functionality though and therefore thats why you need Evoscan ?

Also another quick question, the values in the Ignition and Fuel tables ........

I assume the ignition table values are in Degrees IE where you see -10 that would be -10 Deg timing therefore retarded by 10 degs ?

If thats the case its the same as Emanage and PFC however the values in the fuel tables .... Is the value you see in ecuflash the desired AFR ? I.E 14.7 in the low load low rpm areas on the stock map is the value entered to try and run 14.7 AFR in those areas ?

Meaning if you want it to run rich up top you stick in 11.5 if thats what you want ?

On previous software ive used the fuel table values are a percentage of injector duty i.e you could stick in 10 to get 10% more fuel above the base map (which is pre programmed and not able to be adjusted in some cases)

Hope that makes sense ? LOL

Oh one last thing, the High and Low octane maps..... how do you know which one the car is using at a given time ? I.E how do you know which one to be adjusting and when to be adjusting it ?

Cheers !

[HermaN]

Yes mate, ignation table values are in degrees, so -10 is -10 degrees of timing (retarded by 10 degrees).

Again, you've got it right with the fuel table values, they are the desired AFR's, and obv not what will actually be achieved.

Taken from the 2nd turorial I linked you to.....

The formula to adjusting the fuel map is very simple. Let us look at the 5500 rpm row and load cell 220 in the log chart above. The Actual AFR (AAFR) is 11.13:1. The fuel map AFR (MAFR) shows a 9.7 number in the 5500 rpm and 220 load cell. Let us assume that we want a desired AFR (DAFR) of 11.4:1 in that load cell. What should the new map AFR (NMAFR) be?

NMAFR=DAFR X MAFR / AAFR

NMAFR=11.4 X 9.7 / 11.13 = 9.9353

So the number that you should enter in the fuel map in the 220 load cell @ 5500 rpm should be 9.9

As for the high & low octane maps, from what I understand (I'm still learning) the high octane map will be used 99% of the time, but if too much knock is detected then the car goes into "limp mode" and switches over to the low octane maps to reduce knock and prevent damage to the engine. :smile:

[Sideways Steve]

Yeh actually got the answer just after I posted and thought DOH !!! should have read more first !!! LOL

Its not strictly limp mode however, its just a second map for poorer quality fuel and like you say it switches when X level of knock is detected which is also a changable value I believe, I.E you couuld have it going to low octane if knock is above 10 count or whatever.

Theres a seperate "limp" map which has a 4k rpm limit from what Ive seen on ECUFlash.

When limp mode kicks in Im unsure but normally its if theres a failure of a major part like MAF or a sensor somewhere etc and it does it to limit any damage to the engine.