Data Sources & Attribution

CobbVision combines several public, community, and manufacturer-published sources to interpret Cobb Accessport datalogs across all supported platforms. This page credits every source we rely on. Reference data is reproduced for vehicle owners' personal diagnostic and educational use only.

Official COBB Tuning documentation

Map notes, the monitor/parameter list, tuning thresholds, knock-monitoring logic, DTC descriptions, and datalog presets are derived from official COBB Tuning documentation, © COBB Tuning Products LLC, including:

  • Calibration Map Notes for Subaru Vehicles (per-vehicle map notes, all AP3-SUB-00x devices)
  • Subaru Monitor List & Custom Monitor List
  • Subaru Accesstuner Tuning Guide + 2.0L / 2.4L DIT Tuning Supplements
  • Subaru Knock Monitoring; Dynamic Advance in Subaru DIT Engines
  • Subaru DTC Descriptions & Common Trouble Codes
  • Data Log Presets; How To Datalog: Subaru Vehicles
  • Fuel Injector Data; EJ Recommended Injector Size by Horsepower
  • NexGen / CAN Flex Fuel Tuning Guides; Speed Density Guide
  • Accessport User Manual & Manager Manual
  • COBB Customer Support wiki: cobbtuning.atlassian.net/wiki/spaces/PRS

COBB Tuning: www.cobbtuning.com

Community knowledge (heuristics)

Cross-parameter relationship heuristics and the false-knock vs real-knock discrimination logic are informed by enthusiast and tuner communities. These are community-validated rules of thumb — not official COBB specifications. Credit to:

Other data & software

  • VIN decoding: NHTSA vPIC database (vpic.nhtsa.dot.gov)
  • Mapping / GPS correlation: user-supplied GPS tracks (GPX / NMEA / UBX / CSV)
  • Charts: Chart.js · CSV parsing: league/csv · Payments: Stripe & NOWPayments

Disclaimer

CobbVision is an independent analysis tool and is not affiliated with, endorsed by, or sponsored by COBB Tuning Products LLC, Subaru Corporation, or any other manufacturer. “COBB”, “Accessport”, “Subaru”, “WRX”, and “STI” are trademarks of their respective owners. Reference data derived from manufacturer documentation is reproduced for vehicle owners' personal diagnostic and educational use. All map notes and calibration documentation remain © COBB Tuning Products LLC.