Wonder whenever i immediate full pedal, my car hardly accelerate as my AFR will deep richly 10AFR got to do with the Latencies & Scaling?

 

When you do large scaling adjustments, you generally have to re-tune your fueling.

 

scaling and latencies will have an effect on AFRs, but what you are referring to would be the accel enrichment.

cheers

 

Really? I would have thought that the Evo 6 ROMs would be very well defined for logging. Are you sure that you can't tick the box to get it to read that parameter? It's a standard EFI kind of thing to monitor. Common consensus is that +/-5 is acceptable. The "in use" will always be changing, but will hover around the 0 mark once your LTFT set themselves, regardless of where that is. The reason we want the LTFTs as close to zero as possible is so that there is more room for the ECU to do short term corrections on its own without hitting limits (+/-15 I think).

I would have to agree with 07EvoIX on this one. It makes sense. I haven't adjusted those settings on my ECU yet. But you need to make sure that your scaling and latencies are correct first. Your idle number looks good, but you need to see that cruise number (mid).

 

Thank you so much Guys but say if after ive done with the Idle & Cruise trims logging, what should i do on the Accel Enrichment?
My current Accel Enrichment Values :
500~3500rpm = 1.40%
4000~6000rpm = 1.37%
6500rpm = 1.39%
7000rpm = 1.41%
7500rpm = 1.42%

What is the ideal % should i put in order to eliminate my super rich afr drop/hard to accelerate whenever immediate full throttle?
I noticed that the Accel Enrichment table values will adjust be it self whenever i either adjust the Timing, Fuel Map or Scale & Latency even thou its just a little adjustment.

Thanks

 

Hi SvenHoek,
yes, im pretty sure i cant log the LTFT Mid & High on my Evo 6 ecu.

 

Here my uncompleted current Tune Maps.

Please do advise.

Thanks

 

what is the max load youa re hitting on WOT?

those load adjustments dont look too good. you have very little resolution to play with. you want to aim for 10 load increments up to max load and then over by 10.

for example, if max load is 350, then you would want to increment load by 10 upto 360 (300, 310, 320, 330, 340, 350, 360). you can reduce resolution in sub-100 as this is mainly cruise.

since you have 19 load cells, 7 used for 300-360. i would use 5 for sub 100, say maybe 10, 40, 60, 80, 100. and then do a horizontal interpolate from 100 to 300.

keep in mind that if you do that, it will change all map tables, so everything needs to be adjusted at the same time. i recommend using excel to get the numbers correct and then copy/paste them to the map.

for the timing, you should aim for a max difference of 3* per 10 load. so if you are working on load cell 80 and then next load cell is 100, then the max timing differnce should be +/-6.

regarding accel enrichment, i have not played with that table yet so couldnt comment on what should be done there. Im still not entirely sre how it works exactly.

hope the above helps.

cheers

 

Could you post up a screenshot of the main screen for EvoScan please? The one where you select which parameters you want to log. I'd like to see where the elusive cruise trim has gotten to.

 

Hi Sven,
here you go.

 

Dear Friends,
pls do kindto share & advise me on my tune.

Thanks

 

Hi 07EvoIX,
can i do the adjustment in such a way?

Btw, how do i know on which cell load im hitting on every run?

Thanks

 

Cool. Thanx for that pic. You should start by de-selecting some of the stuff you are logging. You only want the essentials to what you are tuning. Not only does this help speed up the logging itself, but it makes it MUCH easier to sift through the log afterwards as only the pertinent information will be there.

That is where the "live MapTracer" button comes in to play. Select that before you start logging, and whatever parameter you have selected to show will trace out on the upper map, while showing a reference map on the lower portion. in between which are the numerical readings that I had mentioned to you before.
Ignore the errorand stupid scales on this shot, I have since resolved the problem. This is just to show you the full screen for tracing.


Here is a traced run (this one shows my STFT averages on a run) going through the various load cells. Please ignore the HP rating; I haven't setup the car profile yet.

 

whats the max load you hit on a 3rd gear WOT? that will be your max load.

also you cant just change your load cells without adjusting your fuel and timing maps.

cheers

 

Hi Sven,
i hv the same problem for viewing my power/torque graph too.
How do you resolved it?

Thanks for kind sharing...