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ECMlink trouble with dialing in fic 2150's with V3 SD

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92nolatist

15+ Year Contributor
413
1
Feb 13, 2008
Roxbury, New Jersey
I just installed my brand new 2150s, on pump gas 93, and Im having a hell of a time trying to get these things to work. I searched numerous times and Im getting a ton of answers, but none that are straight forward or solid and none are actually helping me. Not to mention that everyones answer is totally different from the last persons (which makes sense because every setup is different) but Im looking my own answers now.

Now onto the issues. Ive set up the deadtime values that I received from FIC in the DA tables and Ive entered the global value which came out to be -80% (maxed out) and the car barely started then stalled, finally was able to keep it running. Wideband was fully leaned out and my AFRest was pretty darn rich, shit was messed up. So I lowered the global a little and tried again; better but still no good. After a while I came up with -66% and I tweaked the DA table deadtimes a tad and it ran decent but my Airflowperrev was way outta whack, no good. Then it was just a blur of uneducated guessing and pick-a-number to see what helped. At this point (right now) Im furious because nothing is working and I cant get back to what I had it at when it was decent :banghead:

From what I was researching, -70 to -80% is for pump gas and from -60 to -69% is for E85. Now with my "decent" base tune being at -66% on pump just doesnt sound right to me, not at all. Ive attached a log with global at -72% and some driving with it, which was not pleasant to say the least.

Sorry for the long post, I just like to be as informative as possible to theres no confusion. I have this posted on ECMTuning forums as well for additional info. http://www.ecmtuning.com/forums/showthread.php?t=79456
 

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InjBatterAdj is set at what FIC gave me for values in their Data Match flow sheet. Are those gonna need to change in order to fine tune? Or do I just need to mess with global and my SD table? This is where my confusion is, Im under the assumption that I shouldnt need to change the InjBatteryAdj settings away from FICs values....
 
Start back from square one, reset the SD VE table put globals to ~70% and leave the InjBatteryAdj table the way it is.

Tune idle first, getting AirflowPerRev to 0.25 by making changes to your globals. Once AirflowPerRev is 0.25 then you can start tuning CombinedFT's by making changes to the SD VE cell that's being used during idle, target 0% (+/- 8%). After that's complete change your OLThresholds to 50% and go drive for 15 minutes. Right click the log and select SD VE Adjust (CombinedFT).

Go thru your SD VE table and smooth any big jumps in VE...

If you're still having a hard time dialing them in then post an idle only log.

:dsm:
 
Danggg, I really have to reset all my hard work on the sd table??? I thought I could hopefully keep it and mess around with it, but if I have to then so be it. As far as everything else that you said Corey, Im VERY familiar with all of that haha. My previous tune was doing quite well for me and the car. Thank you though.

However, you say leave the InjBatteryAdj table alone, does that mean leave it stock or leave it at the values that FIC said it should be at?
 
Leave it at the values you've changed it to off of FIC's sheet. I'm not trying to be an ass but the SD VE table looks like crap, nothing's smoothed out and if you're wanting to get the car to idle/drive smooth you need to start from the beginning. Idle tune, cruise tune (using SD VE Adjust), smooth everything out, and then WOT tune.

A big chunk of time is spent smoothing (interpolating) each cell so there are no big changes in VE after you've used the tools that Link provides to get everything "roughed" in.

:dsm:
 
Okay I gotcha.

No offense taken sir! This current table looks like dog poop :barf:, I totally agree with you. It USED to look beautiful when I had my 780cc injectors in there, everything was so smooth and flowing, then I switched to these injectors and it got all fudged up LOL.

Ill mess with tomorrow and throw in a default SD table and start all over again.
 
Im working on the idle and so far everything is going well. Ill post up a log tomorrow night when I get home from work, I still have to tidy up a couple things before I post. It looks good to me so far, but thats what you all are for; to critique my work and get second and third opinions.

Have a Merry Christmas everyone, whats left of it.

EDIT: Alrighty then, I threw in a smoothed SD table that someone on ECMlink forums (Highbooost) made for me and I ONLY adjusted the two cells that correspond to idle, everything seems OK to me.

Corey, I tried your way to lower Airflowperrev by changing the globals but it wasnt doing squat :confused:.... So I first got my fuel trims in check then adjusted the VE cells to lower to .25, then readjusted FT's. I used the PDF file below to help me get things in check, and so far so good. Whats your opinion on how things look?

Let me know how Im doing! Thanks guys!
 

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Ok, quick little update. As Im still in the process of dialing these things in perfectly, naturally another problem arises......my throttle plate is sticking open at idle at 2% for some reason :notgood:, and its making the engine rev at 1500 rpms. And my throttle cable is NOT too tight, so now I have to figure that out :banghead:. Im gonna pull off the TB tomorrow night and have a look see as to what the problem might be.

Another thing though, I did a couple quick pulls to see how everything is doing and my BoostEst and MAP dont line up between 5500 and 6500 rpms (couldnt make a full pull due to my coilpack being bad and breaking up in boost). However they line up between 4200 and 4600. Does that mean I have to make my global fuel more negative? I attached a small log of that pull.
 

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Alright here gentlemen, Im still having a couple issues with tuning this car. During normal driving and during pulls, Im getting really lean spikes around 4500-5k rpms, and I dont know what the hell is causing it. I have an attached log to show you what Im talking about. Please someone show me something that Im not seeing to help fix this! Is my global still off? Or do I need to richen the sd table up in those areas? (sd table already seems too rich to me anyways in that area)
 

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