Scania Sops File Parameter List [ TRUSTED ]

This guide is designed for technicians, tuners, and engineers working with Scania XPI (High Pressure Injection) systems via tools like Scania SDP3 (Scania Diagnos & Programmer 3) or third-party tuning software (e.g., Adblue delete or HP tuning suites).

6. Pros & Cons

| Pros | Cons | | :--- | :--- | | Unlocking Potential: Allows modification of parameters locked by the factory (speed limits, RPM limits). | High Risk: One wrong value in a critical parameter (like injection timing) can destroy the engine or transmission. | | Time Saver: Eliminates the need to manually map ECU addresses. | Technical Barrier: Requires advanced knowledge of Hex editing and Scania electronics. | | Versatility: Useful for both engine tuning and chassis adaptation/retrofitting. | Software Dependency: Useless without compatible tuning software/hardware. | | Comprehensive: Covers safety systems, comfort features, and engine performance. | Version Control: Lists can become outdated; new ECU revisions may require updated lists. | Scania Sops File Parameter List

5. Aftertreatment System (SCR & DPF)

• P17_001 – DPF regeneration strategy (Automatic/Request only/Disabled – Note: Disabling is illegal in most regions)
• P17_045 – AdBlue dosing correction factor

Representative parameters, typical values, and actionable notes

(Note: exact parameter names vary by Scania SOPS version; treat these as canonical equivalents.) This guide is designed for technicians, tuners, and

• EngineTorqueMax (Nm)
  • Purpose: maximum commanded engine torque.
  • Typical: 1200–2800 Nm for heavy trucks (depends on engine).
  • Action: Reduce by 10–15% if drivetrain failures occur; increase only when load and cooling verified.
• EngineTorqueMap (multi-point curve)
  • Purpose: maps torque demand vs RPM/throttle.
  • Action: Smooth abrupt slope changes; simulate with engine model or test on dynamometer.
• IdleSpeedTarget (rpm)
  • Typical: 650–900 rpm.
  • Action: Raise slightly for heavy APUs or high loads; lower if vibrations or stalling observed.
• RevLimiter (rpm)
  • Typical: 2200–2600 rpm diesel engines.
  • Action: Set to manufacturer safe limit; do not exceed mechanical limits.
• DPFRegenerationMode (auto/manual/forced)
  • Action: Keep auto on; set forced for workshop intervention only.
• SCRDoseLimit (mg/shot or mg/km)
  • Action: Do not disable; lowering may reduce NOx compliance and trigger faults.
• SpeedLimiter (km/h)
  • Action: Set per fleet policy; verify transmission calibration after change.
• PTOEnable (boolean) and PTOTorqueLimit (Nm)
  • Action: Set torque limit to protect driveline; require interlocks (brake, neutral).
• CANNodeID & CANBaud (e.g., 500 kbps)
  • Action: Avoid conflicts; document all changes to network diagram.
• InjectorOffset_X (µs)
  • Action: Use calibrated bench values; small changes affect fueling and emissions significantly.
• FuelCutTemp (°C)
  • Action: Keep conservative to avoid engine damage; confirm coolant sensor calibration.
• FaultLoggingLevel (0–3)
  • Action: Use higher level during commissioning; revert to lower for production to reduce data volume.
• ChecksumMode (on/off) and ChecksumSeed
  • Action: Keep checksum on for integrity; if changing seed, update deployment tooling.

2.2 Fuel & Injection

• injection_timing_advance

  • Type: float (degrees BTDC)
  • Range/Example: -5.0 to +8.0

• max_injection_pressure_bar

  • Type: integer (bar)

• fuel_map_id

  • Type: string