A theoretical sort of question, PE vs closed loop In looking at the open loop fueling and the PE MAP enable, PE vs RPM tables, and the FTC map boundaries, I see a fair bit of overlap. Now, this seems odd to me because closed loop learning is (supposedly) inhibited when the target A/F multipler is <>1.000. Though I can't say I entirely believe this as when I played with Predator power enrichment I did see it affect some of the LTFTs. But anyway... What possible benefit is there to having FTCs which overlap, or are entirely covered by, PE-active operation? Why would we not want the uppermost FTC row, at most, to overlap PE enabled MAP and the rightmost, the start of meaningful PE vs RPM? And what would be the purpose of having so many unused (by high RPM boundary) FTCs? I still have this itch to gerrymander the map to make finer-grained, more cells in the sub- PE MAP / RPM regions and fewer "wasted". Thought being that this would make for better fuel control by not having to be everything to everyone. |
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