To announce the release of “MS3 pre-1.6 alpha 1” this adds a number of changes over “MS3 1.5.2 release”.
Who should use this code?
Users wanting to test the new features or as directed by tech support to workaround known issues in ‘release’ version. It is required that alpha/beta testers assist developers by reporting any issues found and providing tunes and datalogs to demonstrate the issue.
Who should not use this code?
Unless directed by tech support, new users should use the current release code instead – see the Downloads page.
Main changes since 1.5.2 firmware
Bug fixes
Rework flex fuel baseline calculation.
Don’t trip overboost when not-running or cranking.
Allow dome test mode to run regardless of MAP.
Fix stepper idle problem limiting homing steps in error.
Fix stepper idle test that wasn’t holding at homing position.
Don’t apply idle RPM correction when idle target RPM is zero.
Batch fire crank resync fix – reset glob_sequential after crank if it was changed.
New/changed features
Closed-loop boost, single-solenoid. Add bias range option.
Add TPS-based MAP prediction.
Add support for Kia IMU over CAN for accelerometer inputs, X, Y, Z=yaw.
Add feature to lookup launch limit based on MAP to help with turbo spooling.
Add 11th,12th spark outputs for MS3PRO hardware.
Add cam decoder for Barra. (Set 6 cam teeth.)
Add “Linear 0.5-4.5V” Generic Sensor transformation.
Add on/off bitfield datalog channels. Tweaked version of data supplied by EFI Analytics.
Change layout of I/O testmodes to show usage too. (Needs checking on all hardware.)
PWM fan control.
Launch – option to ignore RPM requirement.
Add VSS1 vs. VSS2 timing retard table as additional Traction method.
Changed injector deadtime logic to use lookups only and can include pressure.
Extend boost vs. speed/time etc. to 12 points.
For boost vs. time, hold at zero time during launch.
Apply rewritten VQ35 decoder from 1.5.2.1
Minor/ internal
Remove PW4X.
Add recommended braces to A/C idle/fan condition.
Change MAP calibration displayed units to kPa.
Fix typo on lotus dash setting.
Do set DDRS for MS3, MS3-Pro gen1, MS3-Goldbox.
‘gear’ changed to signed in ini.
Reduce no. knock channels from 16 to 12 to free up outpc space.
E46 CAN broadcast tooltip note.
Shift light bulb test.
VVT delay.
Allow knock_conf_debug on MS3Pro if num_cyl is small enough.
Return an error if incorrect data length sent to calibrate AFR table.
Attempt workaround for injOpen1 in ini to stop TS complaining.
The firmware zip is available from:
** Injector deadtime method has changed. You MUST check and reset your deadtime. **
Be sure to read the README.txt and RELEASE-NOTES.txt that are supplied in the zipfile.
Some of the ini changes will result in harmless warnings when loading MSQs from 1.4.x Users upgrading from 1.2.x or earlier codes need to pay more attention.
TunerStudio 3.1.xx or later is recommended for correct serial validation and SDcard format operation.
Feedback and discussion
Please join us on the forum with any discussion on your testing of this firmware.