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Home >> Porsche >> 2018 >> Macan GTS >> Repair and Diagnosis >> External Pages >> Different car >> Section 344 (Fuel Charging & Controls - INGENIUM I4 2.0L Petrol -- Discovery Sport/L550) >> Fuel Charging And Controls - INGENIUM I4 2.0L Petrol >> Diagnosis And Testing >> Fuel Charging And Controls >> Symptom Chart

Symptom Chart

WARNING: This page is about a different car, the 2018 Land Rover Discovery Sport. However, it is still accessible from the selected car via links, so may be relevant.
SYMPTOM POSSIBLE CAUSES ACTION
Engine cranks, but does not fire
  • Positive crankcase ventilation system blocked/leaking
  • Engine system fault
  • Check the integrity of the positive crankcase ventilation system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
Engine cranks and fires, but will not start
  • Evaporative emissions system fault
  • Engine system fault
  • Refer to the relevant section of the service information and check the purge valve
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
Difficult cold start
  • Engine coolant level/anti-freeze content
  • Battery/charging system fault
  • Engine system fault
  • Evaporative emissions system fault
  • Check the engine coolant level and condition. Rectify as necessary
  • Refer to the relevant section of the service information and check the battery and charging system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Refer to the relevant section of the service information and check the evaporative emissions system. Rectify as necessary
Difficult hot start
  • Fuel injector leaking
  • Engine system fault
  • Evaporative emissions system fault
  • Check the fuel injectors for leaks. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Refer to the relevant section of the service information and check the evaporative emissions system. Rectify as necessary
Difficult to start after hot soak (vehicle standing, engine off, after engine has reached operating temperature)
  • Fuel injector leaking
  • Engine system fault
  • Evaporative emissions system fault
  • Check the fuel injectors for leaks. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Refer to the relevant section of the service information and check the evaporative emissions system. Rectify as necessary
Engine stalls soon after start
  • Positive crankcase ventilation system blocked/leaking
  • Engine system fault
  • Intake air system leaking/restricted
  • Check the integrity of the positive crankcase ventilation system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Check the intake air system for leaks and restrictions. Rectify as necessary
Engine hesitates/poor acceleration
  • Fuel injector leaking
  • Engine system fault
  • Transmission system fault
  • Intake air system leaking/restricted
  • Accelerator pedal movement restricted (carpet, mats, etc)
  • Check the fuel injectors for leaks. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTCs and refer to the relevant DTC index
  • Check the intake air system for leaks and restrictions. Rectify as necessary
  • Check that the accelerator pedal is free from restriction. Rectify as necessary
Engine backfires
  • Intake air system leaking/restricted
  • Engine system fault
  • Check the intake air system for leaks and restrictions. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
Engine surges
  • Engine system fault
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
Engine detonates/knocks
  • Intake air system leaking/restricted
  • Engine system fault
  • Check the intake air system for leaks and restrictions. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
No throttle response
  • Engine system fault
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
Poor throttle response
  • Positive crankcase ventilation system blocked/leaking
  • Engine system fault
  • Transmission system fault
  • Intake air system leaking/restricted
  • Check the integrity of the positive crankcase ventilation system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the powertrain control module for related DTCs and refer to the relevant DTC index
  • Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTCs and refer to the relevant DTC index
  • Check the intake air system for leaks and restrictions. Rectify as necessary