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Home >> Land Rover >> 2021 >> Discovery S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 4 (Evaporative Emissions - V6 S/C 3.0L Petrol -- Discovery/L462) >> Specifications >> Diagnosis And Testing >> Evaporative Emissions - V6 S/C 3.0L Petrol (G1707365) >> Symptom Chart

Symptom Chart

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Symptom Possible Causes Action
Difficulty in filling fuel tank
  • Restriction in the vapor line between the fuel tank and the carbon canister outlet/atmospheric port
  • Check for restrictions/damage, etc (see visual inspection)
Fuel smell
  • Fuel system leak
  • Purge valve inoperative
  • Check for leaks
  • Check the operation of the purge valve
CHECK FUEL FILLER CAP displayed on message center and only evaporative emission system leak DTCs P0442/P0455/P0456 set
  • Fuel system leak detected
  • Refer to the information below regarding the diagnostic routine and the special tools. GO to PINPOINT TEST A .
Malfunction Indicator Lamp (MIL) illuminated and only evaporative emission system leak DTCs P0442/P0455/P0456 set
  • Fuel system leak detected
  • Refer to the information below regarding the diagnostic routine and the special tools. GO to PINPOINT TEST A .
DMTL system related DTCs P0447/P0448/P2401/P2402/P2404/P2405/P2406/P2450 set
  • Diagnostic Module Tank Leakage (DMTL) system fault
  • Refer to the information below regarding the diagnostic routine and the special tools. GO to PINPOINT TEST A .
DMTL system related DTCs P043E/P2401/P2402/P2406/P240A set - XJ (X351) 2010 to 2015 model year
  • Diagnostic Module Tank Leakage (DMTL) filter blocked by dirt/ice, due to spray from the road/tire
  • Refer to technical service bulletin JTB00436