OBD-II & Euro 6 Fault Calibration
P0420 & P0430: Catalyst Efficiency & Downstream O2 Calibration
Calibrate P0420 & P0430 (Catalyst System Efficiency Below Threshold) on Bosch MED17, MG1CS & Continental Simos 18/19 in DaVinci Ghost 1.0.41.
Root-Cause State-Machine Calibration
Wiping only the fault code from the OBD table leaves internal ECU torque derate or regeneration loops active. In DaVinci Ghost v1.0.41, combine Lambda / O2 Off (/lambda-off.html) + Readiness with automatic CHK/CVN in a single 1-token session.
Diagnostic & Calibration Summary
| Recommended DaVinci Switch | Lambda / O2 Off (/lambda-off.html) + Readiness |
|---|---|
| Commonly Affected ECUs | Bosch MED9.1, MED17.x, MG1CS001/002/003/201, Continental Simos 18/19 & Marelli |
| Checksum & CVN | Included Automatically (0 Extra Tokens) |
Lookup Additional Codes Instantly
Have companion fault codes in your diagnostic scan? Run them through our Free Interactive OBD-II & Euro 6 DTC Lookup Tool or verify your hardware unit in the Live 5,404-ECU Compatibility Checker.
Calibrate Your ECU File in DaVinci Ghost v1.0.41
€0.99 10-day real trial (10 tunable files) or €79.99/mo (10/day). Cars, Vans & 24V Trucks + CHK/CVN included.