ECMlink New 20g, cruise log advice/help!!!

[hofmania]

Hellllo DSMLink pros! I know you're out there. I know you want to take a look at another nooooooob log and help me out! I have to admit, I'm pretty pumped that I finally got to this stage. About a month ago I thought for sure I was going to have to part out and scrap this puppy. But instead, here we are going for a cruise.

A couple things worth noting or looking at...

1. Still having a heck of a time getting my ISCPos set at idle.
2. Having a strange issue where my AFR goes wayyy up at lower RPMs (look at LC1 values and you can see the spikes in pink)
3. I've never seen the KnockRet register a value at all
4. Mod list is up to date
5. When I first start the car it has to die about 2x before it actually stays running, why would this be?
6. I've been following the "How to Tune a 1g V3 SD Link with no MAF" guide (v1-8)

Any feedback and/or questions are really useful. Most interested in seeing how you guys process these logs and then come up with next steps to tune.

Download Cruise log here it was too big to attach

 

[hofmania]

Feedback would be helpful even if it's to say what is the matter with my post!

 

[WFO-TSi]

First thing I noticed was how elevated your AirflowPerRev numbers were at idle. You said you’ve been following the “How to Tune a 1g V3 SD Link with no MAF" guide. Go back to the guide and start working things at step 7. Get that idle dialed in and work from there. Hopefully that solves a lot of your idle issues.

Can you point out the exact lean spots you are talking about? The ones I’m seeing indicate you need to spend time adding fuel to those cells on your SD table. For instance look at the 1500rpm column on your SD table. As load increases (working top to bottom on the table) so should the numbers in that column. Currently your cells are set so that it will go from 80.5 and as load increases it’s dropping to below 60. There should be a linear and fairly steady increase.

Just spend a little time “smoothing” them out and you’ll have your car ripping in no time. Hope that helps!

 

[hofmania]

First thing I noticed was how elevated your AirflowPerRev numbers were at idle. You said you’ve been following the “How to Tune a 1g V3 SD Link with no MAF" guide. Go back to the guide and start working things at step 7. Get that idle dialed in and work from there. Hopefully that solves a lot of your idle issues.

Can you point out the exact lean spots you are talking about? The ones I’m seeing indicate you need to spend time adding fuel to those cells on your SD table. For instance look at the 1500rpm column on your SD table. As load increases (working top to bottom on the table) so should the numbers in that column. Currently your cells are set so that it will go from 80.5 and as load increases it’s dropping to below 60. There should be a linear and fairly steady increase.

Just spend a little time “smoothing” them out and you’ll have your car ripping in no time. Hope that helps!

Thanks a ton for replying! AirflowPerRev at idle is right around .25-.28. I'll take another look. I've never done the smoothing part before. I think that is where I'm a bit in the dark.

 

[WFO-TSi]

Your reply had me thinking I might have been nuts. Check out the log you posted from 170 seconds – 210 seconds, or 589 seconds – 627 seconds. Your AirflowPerRev is .30+

And as far as a “smooth” SD table goes, please see the pic below as an example.

 

[hofmania]

Ya you're definitely right. That's pretty strange. Hmmmm

Thanks for posting that SDtable. Are you running SD yourself?

 

[WFO-TSi]

You’re welcome, and yes I’m running Speed Density, but that table is not one of mine. I got that from the DSMLink Wiki page.