Diagnose first. Log with context. Calibrate when the evidence is ready.
Start with OBD-II codes, freeze-frame data, readiness, and learned values. Capture revision-aware logs, inspect MAF scaling, then move into guarded flashing or qualified live tuning—with saved ROMs and logs keeping each session in context.
Adjust qualified tables with a Customer license. Check the exact-ROM selector for availability.
Read, edit, flash, log, and diagnose supported HC16 vehicles with an active account.
Vehicle profiles, saved revisions, and datalogs keep each tuning session in context.
Connect with a supported interface. No ECU removal or soldering required.
Exact-ROM capability check
What features are available for my ROM?
Select the calibration ID shown in your ROM or by PulseWidth Classic. Availability below is for version 1.0.0 and is rechecked inside the app before a feature can be applied.
Explore the workspace
Less window juggling.
More context for every change.
Move between calibration tables, data, flash preparation, and vehicle history. Try the interactive preview to get a feel for each workflow.
The core HC16 toolkit is Free. A Customer license adds qualified live tuning and ROM-specific custom features.
Base Timing
No changesSwipe to scroll. Select range to edit.
Drag a rectangle · Shift-click a range · Ctrl/⌘-click to toggle cells. Headers select rows or columns. Edits apply to the whole selection.
Gold area = selected cells · Gold marker = sample lookup
Move over the graph to follow a datapoint. Pan the timeline below to explore the rest of the log. Synthetic data; not a vehicle measurement.
Ready to scan
Run a fictional scan, or select an example from shared history.
This preview never reads, clears or changes real codes. No names, VINs, uploaded logs or account identities are stored in demo history. Real vehicle diagnostics remain separate.
Read. Review. Write.
- 1Connect
- 2Read
- 3Review
- 4Write
- 5Verify
- 6Reconnect
Try a complete read-to-write session. You control the confirmations; the demo handles the progress and log.
Read Test rom first to create a fictional recovery point.Illustrative events only · no device commands
Play the sample log or scrub through it to inspect the channels together.Inspired by PulseWidth Classic, not an exact clone. All activity is simulated. Layout and features vary by ROM and license.
- OBD-II trouble-code reader with clear vehicle context
- Freeze-frame data and readiness monitor status
- Learned-value and learned-table inspection
- Vehicle identity and coverage checks before calibration work
- 100+ profile-matched live-data channels on qualified HC16 calibrations
- Revision-aware datalogs and reusable logging profiles
- Learned-table review and MAF-rescaling analysis
- Account-backed log history for review across devices
- Definition-based ROM editing and qualified live tuning
- Pre-flight validation, checksums, and recovery-aware flashing
- Cloud ROM backups, recovery points, and tune revisions
- Connected professional-tuner services (coming soon)
Cloud-backed ROMs, datalogs, and revision history help you pick up where you left off. Keep diagnostics and evidence ahead of calibration, with clear compliance boundaries throughout. Connected professional tuner services are coming soon.
OBD-II diagnostics
Learned + MAF views
Live + cloud workflow
Impreza WRX
2002-2005
All markets. Exact release ROMs are listed below with per-ROM Live Tuning and Launch Control status.
Impreza WRX STi
2001-2006
JDM, EDM, and ADM models, including AVCS-equipped cars.
Forester Turbo
2001-2003
SF5/SG5 S/tb and early XT, JDM/EDM/ADM/SADM.
Legacy / Liberty B4
2002-2003
BE/BH twin turbo, including wagons and the 3.0 six.
Outback H6 3.0
2001-2004
Diagnostics, logging, and calibration access for the six.