Subpage of VemsTune
Example to upload project files that have been prepared (usually by the install supervisor or power-users)
- for certain (family of) setups. "Family" means: usually the trigger, IAC and other parameters are the same.
- There might be choosable options, like for injector size, cam-HALL example yes/no, or for ignition output setup (AAN/3B).
Notes
The examples below were captured with VemsTune 2008-10-16 release. In 2010 vemstune these functions are available under File / Project. Namely
- File/Project/Open (1.1.27 12x12)
- File/Project/Firmware upload
- optional. The project config upload can be used with newer firmware, but than review needed to verify the auto-filled tables.
- File/Project/Config upload
- than select the appropriate options
Experienced installers can prepare different settings for other engine family, with similar options like below.
Even if the software part of upload can be solved with a few clicks, the important safety measures still apply. Do not skip these (you might fill cylinders with fuel, blow ignition fuse, or worse...). Before firmware upgrade, always:
- remove ignition fuses
- remove fuelpump relay
- or otherwise make sure the fuelpump is off, eg. hidden anti-theft switch
- remove injector connectors
- upgrade firmware, upload and verify config and tables. Reboot. Than measure voltage in the igncoil and injector connectors (switched pin not pulled to ground, that is no 12V measured between the 2 pins).
- Only if all is well, think about powering the fuelpump and inserting ignfuses
Project open + project config upload
- File / Project / Open / 1.1.27 (12x12)
- File / Project / Config Upload
- the appropriate config files can be selected.
The same procedure applies to 1.1.65 (or newer). If you upload an older config (1.1.27 in the examples) with recent VemsTune (2009-12 or later), it will automatically use "defaultfirmwareconfig/..." for any variable not found in the uploaded config. This "upgrade-feature" saves time: helps to get reasonable values in new tables (without extra steps). Note: it is recommended to review the tables and dialogs anyway.
IAC PID setting
Someone suggests on MembersPage/RanzAudi that "IAC pid D-term" appr 100 gives MUCH better behavior with the audi IAC PWM valve (and engine). The default setting (uploaded during the above steps) is IAC pid D < 35 so give it a try: bump it up as a test. Also give some feedback (here is OK). We'll make a much higher IAC pid D the default after some experimentation and feedback.
I use high D values for Vems idle since 1.1.27 era. For some reason D is far less sensitive than P and I. My usual D values are in 80...200 range. But P and I varies in 8...25 range - aprox ten times lower. MembersPage/GintsK
Create individual project file - for advanced users
The file is a simple XML format.
- Rename/Copy the original .vemsprj file.
- Open it with Your favorite XML editor.
- The structure is very simple/straightforward.