Scenario:
Small throttle inputs = very lean conditions, sometimes enough to cause a hesitation. This includes slow inputs all the way up to point that we start getting into the boost maps.
Particularly annoying when puttering around town at 20mph or so, or climbing hills at highway speeds.
Mashing the gas gives perfect AFRs immediately. This is only a part throttle low load issue.
Here's what i've got. Anything look completely horrible?
Harvey
Reader
10/10/14 1:53 p.m.
I'm not even really going to pretend I understand how to tune MS even though I have attempted to tune my MS. I never even changed any of these settings from the default from what I remember.
It looks like in the right hand graph that you've got almost 0 TPS based AE at very low throttle inputs whereas some of the examples I've seen start out with a small amount even at very low throttle. I'm just guessing though and bumping this so someone who is better at this can come in.
If you click the button in the upper right of the table, what are the values in there?
Not sure i remember.... i'll see if i have time to check tonite, will post more screenshots.
youngfg
New Reader
10/10/14 2:22 p.m.
Set the TPSdot threshold value as low as you can without noise triggering enrichment. This will let the small TPSDot values cause enrichment.
Can you post a link to the full tune file and a data log of what's happening?
Harvey
Reader
10/10/14 2:55 p.m.
MadScientistMatt wrote:
Can you post a link to the full tune file and a data log of what's happening?
I think this guy might know something.
Matt are you over on MT? I think i have the MSQ uploaded over there. Let me see if i can figure out a way to do this.
I'm not sure if i have a datalog of it. I know i have a datalog of it just sitting and idling and maybe a small free-rev or two just to make sure things are working.
Link to datalog: www.miataturbo.net/attachments/build-threads-57/124821d1412131333-i-told-bring-thread-over-here-blame-fireindc-2014-09-29_19-48-01-msl
I'm trying to see if i can pull the MSQ from here. (At work right now.)
This should be the MSQ: www.miataturbo.net/attachments/build-threads-57/125379d1412971360-i-told-bring-thread-over-here-blame-fireindc-currenttune-msq