DEALER 0412 INDORE CENTRALSYNC OKXP 4,820 / L7
DiagnostiQ

EGR Cooler Bypass Stuck

ScenarioATT-2026-0840ENG-EGR-009CERTIFICATION MODE08.08.2026 14:22
Final score
79/100
Elapsed 15:34
Safety compliance30/30
Diagnostic path28/40
Measurement interpretation14/20
Efficiency7/10
Unnecessary parts cost avoided
Rs 5,50,000

Repair selected: Clean the EGR cooler passage and replace the position sensor

Decision replay
  1. Allowed the exhaust system to cool before access
    Safety gate
  2. Selected P0401 insufficient EGR flow
    DTC readout
  3. Commanded the valve without a position log
    Branch decision
  4. Compared commanded against actual position
    Branch decision
  5. Differential pressure checked against the petrol table
    Measurement
  6. Cleaned the cooler passage and replaced the sensor
    Repair decision
Deductions
  • Valve commanded open without logging actual position-12
  • Differential pressure compared against the wrong table-6
  • Marginal time overrun-3

Demo build. Scenario content is illustrative and not validated against any OEM service procedure.