The Hondash gearbox calibration system is designed to be fully autonomous and run seamlessly in the background. The app automatically identifies your active gear by continuously calculating the shifting ratio between your engine speed (SP-REVS) and vehicle speed (SP-VSS).
💡 The Golden Rule: Under normal circumstances, you do not need to monitor, manage, or care about this calibration. Just drive your car naturally, and the app will automatically lock in your gears over time.
However, if you have a manual transmission with aggressively close gear ratios (where 4th and 5th gears are very tight), or if your initial driving patterns trigger detection loops, you might encounter a tricky edge case. This guide is intended only to help you troubleshoot those specific situations.
The Tech Breakdown: Understanding Weight vs Confidence
To fix a stubborn calibration, it helps to understand how the background algorithm evaluates your driving data:
- Confidence Percentage (%): Indicates how cleanly your current RPM and speed match a mathematically predicted gear ratio.
- Duration Weight (Time): The total accumulated time you have spent driving steadily in a specific gear.
When starting completely from scratch, a gear might rapidly achieve 100% confidence, but its duration weight is still very low. In this initial interval, the calibration data entry is fragile. A sudden gear change or quick speed fluctuation can cause a low-weight gear to lose its lock, revert back to "Calibrating", or generate an accidental duplicate "ghost" gear (marked with a red question mark ?).
Once you have driven in a gear long enough to build substantial duration weight, it becomes permanently anchored and will never uncalibrate again.
Step-by-Step Resolution for Tricky Edge Cases
If your app is struggling to lock onto your top gears or is generating false gear readings, follow these specific steps to guide the algorithm to success.
1. Pre-Drive Setup (Detection Range)
Open the Gearbox Calibration dialog inside the Hondash app settings.
Detection Range slider located at the bottom of the Calibration dialog box.
- set wider range if the number of detected gears is higher than actual count (e.g. 5 or more gears detected for A/T 4-speed gearbox) or the algorithm detects false gears frequently (highlighted in red color), after adjusting press "reset" to restart the calibration or remove the false gears manually
- set narrower range if the number of detected gears is lower than actual count (e.g. 4 or less gears detected for M/T 5-speed gearbox), after adjusting press "reset" to restart the calibration
- For Close Gear Ratios: If your transmission has very tight 4th and 5th gears, slide the Detection Range to the Narrow position. This forces the algorithm to focus tightly and differentiate between close ratios.
- Note: If you are clearing out a previously glitched attempt, tap "Reset" to completely wipe the cache before driving.
2. Anchor Your Gears (Building Duration Weight)
Head out to a stretch of open road or a highway where you can drive continuously. (Note: You do not need to keep the calibration screen open while doing this, it calculates in the background).
- Drive sequentially from your lowest gear up to your highest gear.
- Ensure you hold each gear at a steady speed for at least 7 to 10 seconds uninterruptedly. This steady time is crucial to building up the data weight required to permanently save the entry.
- As the app successfully locks onto each ratio, its row on the calibration screen will highlight in Green.
3. Purge the Ghost Gears ("The Deletion Trick")
During the initial low-weight phase, if the app loses its place and populates an inaccurate or duplicate gear entry marked with a ?:
- Pull over or safely look at the screen, long-touch the erroneous gear row, and click Delete.
- Actively deleting these false hypotheses tells the algorithm its guess was wrong, forcing it to channel its calculations exclusively into your true, green gear entries.
4. Permanently Lock It In
Once all your actual physical gears are accurately identified, turn green, and have accumulated healthy driving durations, you want to stop the app from ever looking for new variables again.
- Safely pull over.
- Open your calibration settings and drag the detection range slider towards "Wider".
- 🛑 CRITICAL: DO NOT press reset this time.
- Widening the range while your true gears are already green heavily restricts the algorithm's ability to trigger new gear detections. This acts as a permanent lock, ensuring your calibration remains perfectly stable forever.
Troubleshooting & Support
- Manual Data Entry: For heavily modified, custom gear sets where a digital range adjustment still struggles, keep an eye out for upcoming Hondash updates which will introduce direct, manual workshop data entry.
*Note: Reverse gear detection is not supported by the Hondash hardware/software architecture.
