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Added February 23, 2016 by echoknight
Updated the JB4 firmware to V12.6
  • Methanol
  • 93 Octane
Updated the JB4 firmware to V12.6
Datalog File: 
Fuel Type: 

Comments

v12_6 firmware notes:

1) Added tip-in fuel enrichment logic for JB4 port injection control to help reduce fuel pressure drops during sudden boost transitions.
2) Revised engine speed, IAT, and low fuel pressure port injection mapping
3) Changed DWP to represent spool mode behavior. This value now represents the % of boost target before the JB4 comes out of PWM=100 spool mode. 0=0% of boost target (fully disable) and 100=100% of boost target (over-shoot city). A value of 85% is suggested as a starting point.
4) Changed cold-start E85 logic so that it only triggers if FutureUseD bit2 is enabled.
5) Corrected bug in 2STEP logic

v12_5 firmware notes:
1) Added water temp and oil temp full time logging via JB4 Mobile.
2) Revised port injection mapping. If you've already tuned in your AFR bias values you may need to revise them again. Evaluate a log with the new firmware to determine that.