There is a new release of the MS2/Extra Alpha 3.0.3 available. This new version has the following changes:
- Ken's change for staging which prevents unwanted activation when a parameter like TPS becomes negative.
- Addition of a hybrid mode for the sequential siamese mode. This mode allows the injection to go from the full sequential dual pulses to a single pulse for both cylinders. This allows the optimal use of the injection window by removing the closing and opening of the second pulse therefore using the entire open valve duration (of both cylinders) for fuel injection. There is an activation RPM where the single pulse will start when RPM is going up and an RPM hysteresis used when the RPM goes below (activation RPM-hysteresis RPM) when going down. Changing these RPM values require a power cycle to take effect.
Also, since there is a need to change both the fueling and the injection timing when going to the single pulse mode, there is now a third injection timing value and timing table. The fueling for the single pulse mode is done by using the Fuel VE Table 3 in the Extended menu. This means that this table can no longer be used to switch table in the sequential siamese mode (but it's still available in the other sequential/semi-sequential modes).
To disable this hybrid mode and run purely in dual pulse mode, the activation RPM is set to a value higher than the engine's usable range (for example 15000RPM).EDIT: Due to the limited number of posts here and the short time since the last version I have updated this post.
The code has been updated to include Ken's fix for the rotary trailing code.
Also, a bug was fixed for the priming pulse. The priming pulse was only fired for injector channels 1 and 2.
And staging was fixed. It was broken for sequential/semi-sequential when another fix was included.EDIT2:
VE trim tables now centered around 100% instead of 0%, i.e., 100% means no trim. The values can be from 87.6% to 112.4% (+-12.4%).
The new release is available here:http://www.msextra.com/ms2extra/files/alpha/ms2extra_alpha20090627.zip
This version is in sync with the release 2.1.0 from the same date.