RomRaider
https://mailserver.romraider.com/forum/

Lean and rich spikes in SD
https://mailserver.romraider.com/forum/viewtopic.php?f=37&t=21885		 Page 1 of 1
Author:  Toporik [ Thu May 22, 2025 10:36 am ]
Post subject:  Lean and rich spikes in SD
Hi all! Any help will appreciated! I prepare to change my TMIC to FMIC with blow-off valve. Stock bypass valve will take place in Hall of Fame :D
In proccess of VE calibration, I take some problem: in throttle change (tip-in or tip-out) my AFR quickly very lean in tip-in or very rich in tip-out.
Changes in tip-in enrichment, tau enrichment and load smoothing not affect to result. Log, xml and bin attached.
THANKS!
My car:
2005 Subaru Legacy GT 5MT (A2WD012B)
My mods:
Stock EJ20X (without TGV, EGR, secondary air)
DW65C fuel pump
TD04HLA twin-scroll turbocharger
AJS HKS-style 3-inch catless downpipe
Perrin-style TMIC
Pierburg 3-port boost control valve
Deleted rear lambda sensor
MerpMod: Blending SD, LC, Rolling LC, FFS, CEL Flash

Attachments:
SD.zip [606.14 KiB]
Downloaded 34 times
Author:  emilio20 [ Tue May 27, 2025 11:17 am ]
Post subject:  Re: Lean and rich spikes in SD
Any idea when you first noticed the lean on throttle? Only after running VE?
Author:  Toporik [ Sun Jun 01, 2025 7:50 am ]
Post subject:  Re: Lean and rich spikes in SD
This problem became obvious after switching to SD and initial tuning of the VE map. At the moment, the problem is partially solved: I changed the load smoothing incorrectly, changed it near 0, and the required values ​​are around 1 (0.95 - 1). There is no complete solution yet. I am going to change the source code and introduce tip-in and tip-out compensation for the VE value, based on the delta throttle value
Page 1 of 1 All times are UTC
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
http://www.phpbb.com/