ECMlink running rugh, log attached inside

[my4ATEurV8]

a guy told me that because i have fic1450's it will never run smooth because ther to large for ecmlink. any truth in that?
mods are
14b
fic blue max 1450 injectors
socketed ecu from ecmlink
ecmlink v3
ignore my profile mods as thats my other car.
my goal right now is just to get my car to run smooth again. then i will add more parts.
the car ran fantastic before i swapped injecters

this is on a 2g tsi just reving a little

 

[joshs1074]

those seem like way overkill for your mod list. i would put your old ones back in! you can easily run 400 hp on 650's

 

[snowborder714]

Well, what are the mods of the car in question?

And the person that told you that is dumb. You can get the car running fine with any size injector, as long as the fuel settings are accurate.

It looks like your front o2 sensor is dead as you're not getting solid readings from it.

Right click on AFRatioEst at the bottom and click on AFRatio preferences. Then adjust that for the larger injectors.

 

[my4ATEurV8]

thats not my mod list. its just what i have installed. ive got new race parts littered through my spare bedroom. i just want to try and get these dialed in first. then ill add the rest of the fuel system, and so on

 

[snowborder714]

So you're running 1450's on a stock fuel pump and no AFPR? Why not install the whole fuel system and then get it tuned, that way you don't have to change the tune down the road?

 

[bling5tatus]

Having a robust fuel system will make upgrading the VE related components of your car later a breeze. Don't not use those injectors just because someone said they're too big. If you can get your car to idle on pump gas with those then great... use them... they don't have to work as hard as smaller injectors to achieve the same AFR... so in that regard their service life might be longer. Not that i've ever heard of injectors just wearing out, but I'm sure they do since they're mechanical parts.

 

[my4ATEurV8]

here is the new

 

[my4ATEurV8]

made minor adjustments and replaced the front o2 sensor

 

[my4ATEurV8]

running alttle better but still no dice. a few mor adjustments.

 

[twdorris]

running alttle better but still no dice. a few mor adjustments.

I find it a bit concerning that you have to run global fuel settings for 925cc injectors on your 1450s. Something's not right.

At idle, your log shows about 1.89ms of total injector on time. That's with 700 usecs of stock deadtime and 480 usecs of adjustment. So your effective PW is 710 usecs.

If we assume that you're going to run 1450 global fuel settings (-69%) instead of the 925 settings you have now (-51.2%), then your effective PW is going to drop from 710 to 451:

710 * (1 - 0.69) / (1 - 0.512) = 451

Which means you'll need to add 260 usecs to your deadtime to get the same resulting PW at idle.

So try -69% for global fuel and about 740 for deadtime. That should at least give you numbers that make sense. Even though it's not going to change anything related to idle, it should make your wide open throttle results much better. Assuming those injectors are really flowing 1450 cc/min, of course. If they are actually 925s or something around there, then that's a whole 'nother story.

As for the idle RPM fluctuation, try bumping up the O2FeedbackAdjRate table in direct access. Stock values are 4 & 10. Try something like 8 & 14 or maybe 10 & 16. See if that helps any.

Thomas Dorris

 

[my4ATEurV8]

i did what ya told me to tom, hers the new log

 

[twdorris]

Can you post that to your thread on our support forums, please? I'm having a hard time keeping track with multiple threads on multiple forums. In addition, Dave (my partner here) and other ECMLink users will have more ready access to your information there.

Right now, I would try adjusting deadtime down a few clicks at a time to see what differences you can introduce to the idle.

Thomas Dorris

 

[my4ATEurV8]

will do

 

[my4ATEurV8]

ok so this is my newest log after i installed my aem wb02. so now what should i do