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      1. JFA Help Center
      2. FAQ
      • FAQ
        • General
        • Warranty
        • Insurance
        • Tuning Stages
      • Dealer Support
        • Problem Solving
        • Tuning Tools
        • Tuning Credits
        • Adblue
        • DPF - Diesel Particulate Filter
        • DTC - Diagnostics Trouble Codes
        • ECU Information
        • EGR - Exhaust Gas Recirculate
        • EVAP
        • Exhaust Flap
        • GPF / OPF - Gasoline Particulate Filter
        • Lambda o2 Sensor
        • SAP
        • Immobilsier
        • Start/Stop System
        • Swirl Flaps - Inlet flaps
        • Data Logging
        • AGS - Active Grille Shutter
        • Dealer Portal
        • Soft Rev Limiter
      • Manuals
        • Autowatch Ghost
        • JFA Elite Flash
        • JFA Touch Tune
        • JFA Tuning Module
      • JFA Internal

      FAQ

      Our most asked questions from our customers.

      General

      • What is ECU Remapping?
      • Will the lifespan of my engine be reduced?
      • How long will it take to remap my vehicle?
      • Can the remap be reversed?
      • Why choose ECU remapping over a diesel tuning box?
      • What is bench tuning?
      • What if a main dealer wipes the map with a software update?
      • I have existing modifications, will this affect the remap?
      • Is a booking deposit required for a remap?
      See more

      Warranty

      • Will an ECU Remap invalidate my vehicles warranty?
      • What is covered with the "30-day money back guarantee"
      • What is "Block Exemption Regulations" for modifications & warranty?
      • Is DPF removal legal?

      Insurance

      • Do I need to notify my insurance company?

      Tuning Stages

      • What does Stage 1,2 or 3 tune mean?
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