DTC P2031 — Particulate Filter (DPF / FAP / OPF) Subsystem Calibration Guide
Technical Cause: Soot accumulation, differential pressure circuit plausibility, ash load limit or regeneration duration fault triggering limp-home torque limitation.
Recommended Softechpro Module: DPF / OPF Off + Selective DTC Off
Supported across Bosch EDC15/16/17/MD1/MG1/MED17, Continental SID/SIMOS/PCR, Delphi DCM/CRD, Marelli, Denso & 24V heavy-duty ECUs with built-in checksum verification.
TECHNICAL FAQ
Engineering & Licensing Questions
Does Softechpro Solutions disable P2031 cleanly without breaking other diagnostics?
Yes. Softechpro Solutions v2.0.6 parses the exact manufacturer fault-code and switch tables inside your 100% virgin binary so only P2031 / DPF / OPF Off + Selective DTC Off is deactivated while all other engine protections remain active.