Hey guys, So my car hasn't been running right due to larger injectors I put in, so I need to scale the 780's, but need to read off the stft and the ltft, does anybody know where those two parameters are located in evoscan, or what to use instead of it? I see fuel trims(low, mid, high) as an option, but those don't change when I log the car.... thank you

 

anybody?

 

download mitsulogger, its a little easier to use as far as fuel trims go....

or you could search in the ecuflash forum for injector scalings and probably find some injector scaling info that has already been proven to work properly

 

where can it be downloaded

 

I have mitsulogger....there is no"stft" and "ltft", just "oxygen feedback trim" like evoscan...is that it?

 

no... its called fuel trim low/high and 2 other ones i believe

to download mitsulogger... do a search for malibujack on here, he has a link to the site. it should be www.aktivematrix. whatever it is .... you will need to register for the site, its all free and MJ is a great guy to deal with

 

look near the center there is a window to change scale and a couple of latencies,
not in the data logging window, on the page surrounding the data

if it was a snake

 

Gottcha, ok I know about the low, mid and high fuel trims, but they don't change after I change the scaling...They stay the same constant number...the only number that changes is the oxygen feedback trim and that changes +/- 10 around 100...does that seem right? Thanks

 

post up which type of 780's you are using...

also post up your latency values and scaling please

your fuel trims with mitsu logger should be as close to 0 as possible.

also, make sure you change the injector information on the mitsulogger screen where it says scaling and latency at x voltage

 

Alright, well I'm using a UTEC to control my fuel, but at idle and at 0% throttle, it goes to my ecu to control the fueling, so this is where I'm having trouble. The Utec, all it needs is the size of injectors(PTE 780CC), and it scales it automaticallly, but there is also a slot for stock ecu injectors, which is the injectors that your ecu is tuned for, which for me were 680's, so now I would want to write in 780's for the stock ecu injectors also, and then tune the ecu for 780's, but the problem is that the stock ecu injectors slot only lets you go up to 700's, since it's expecting stock size injectors, so now my car idles like **** and is running like **** because of this, so I need a way to try to fix this...

So now, what is the suggested scaling for PTE 780cc injectors...around 636? Because that's one of the options in Ecuflash, and that seems pretty reasonable, but I'm not sure, and for the latency at 14V in Mitsulogger, what do I type in, or leave it the same at .432? Thanks a lot guys, i appreciate it!

 

7v 9.4v 11.7v 14v 16.4v 18.6v
PTE780 2.186 1.369 0.895 0.610 0.419 0.290

Injectors Delfi? Prescision labeled injectors-780 cc.
Injector scailing :609!
Battery voltage Latency:
3.312
1.68
1.032
0.672
0.432
0.264
0.144
(stock)


here are 2 different things i found in a couple minutes

look in this thread
https://www.evolutionm.net/forums/sh...80#post3722265

personally, id start with what worked for the other guy and see how that feels... second, id get rid of the utec ..... sell it, and just use the stock ecu. If the AFR's are off, slowly dial in the scaling until you are close, then fine tune with the latencies

 

can't get any better than that. 100 is basis on evoscan. oxygen feedback that averages 0 is what you want.
now, it needs to average 0 at idle and then again at cruise.

edit:didn't see the utec, I don't know how that might interfere, better ignore my post