uhryniuk 2ad5fab677 Add a layered low-throttle fuel correction on top of the Arrow delete tune ...

Real-world reports: stalling/choking under ~10% throttle and while
blipping the throttle at low speed, after snorkel removal with no
main-table correction for the extra airflow. Confirmed via a genuine
percentage-delta pulled from 20184dynoTuneSteveO2-Disable.hex (also
snorkel-removed) vs its own stock baseline 20186Map.hex, in the
Low-throttle fuel tables, restricted to the throttle columns actually
implicated (raw throttle <= 100, ~10%).

compose_lowthrottle.py composes onto the already-composed
20262-arrow-delete-composed.hex (not raw stock 20262) -- additive on top
of the existing SAI/O2-off + idle-trim layer, same "respect what's
already there" principle as compose_arrow_delete.py. Percentage-based
per-cell, not flat additive, since Arrow's own table already has its own
exhaust-specific correction baked in.

Output: derived/20262-arrow-delete-lowthrottle-composed.hex. Checksum
patched and verified valid; confirmed layer-1's device flags and trim
bytes survive unchanged underneath.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01FP2GaxS9HkUdL5sLBnjKje

2026-09-10 15:39:10 -05:00

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