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Home >> Land Rover >> 2019 >> Range Rover Sport HST >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Engine Ignition - INGENIUM I6 3.0L Petrol -- Range Rover Sport/L494 >> Engine Ignition - INGENIUM I6 3.0L Petrol (G2299960) >> Diagnosis And Testing >> Engine Ignition - INGENIUM I6 3.0L Petrol (G2297099) >> Symptom Chart

Symptom Chart

Symptom Possible Causes Action
Engine cranks but does not start
  • Engine management system fault
  • Positive crankcase ventilation system blocked/leaking
  • 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 integrity of the positive crankcase ventilation system. Rectify as necessary
Engine cranks and fires but will not start
  • Engine management system fault
  • Evaporative emissions system fault
  • Fuel system fault
  • Spark plugs fouled/worn
  • HT short to ground
  • 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 appropriate service information and check the evaporative emissions system. Rectify as necessary
  • Refer to the appropriate service information and check the fuel system. Rectify as necessary
  • Check the spark plugs for cracks, damage, carbon build up, wet fouling, electrode gap too large/small, center electrode condition, ground electrode condition. Rectify as necessary
  • Check the ignition coil rubber boots for cracks/damage. Rectify as necessary
Engine difficult to start (cold engine)
  • Engine management system fault
  • Engine coolant level and specific gravity
  • Battery/charging system fault
  • Fuel system fault
  • Evaporative emissions 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
  • Check the coolant level and specific gravity. Rectify as necessary
  • Refer to the appropriate service information and check the battery and charging system. Rectify as necessary
  • Refer to the appropriate service information and check the fuel system. Rectify as necessary
  • Refer to the appropriate service information and check the evaporative emissions system. Rectify as necessary
Engine difficult to start (warm/hot engine)
  • Engine management system fault
  • Fuel injector leaking
  • Evaporative emissions system fault
  • Fuel 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
  • Check the fuel injectors for leaks. Rectify as necessary
  • Refer to the appropriate service information and check the evaporative emissions system. Rectify as necessary
  • Refer to the appropriate service information and check the fuel system. Rectify as necessary
Engine difficult to start after hot soak (vehicle standing, engine off, after engine has reached operating temperature)
  • Engine management system fault
  • Fuel injector leaking
  • Evaporative emissions system fault
  • Fuel 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
  • Check the fuel injectors for leaks. Rectify as necessary
  • Refer to the appropriate service information and check the evaporative emissions system. Rectify as necessary
  • Refer to the appropriate service information and check the fuel system. Rectify as necessary
Engine stalls soon after start
  • Engine management system fault
  • Positive crankcase ventilation system blocked/leaking
  • Intake air system restricted
  • Air filter element restricted/blocked
  • Intake pipe disconnected/damaged after the air cleaner
  • Fuel 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
  • Check the integrity of the positive crankcase ventilation system. Rectify as necessary
  • Check the intake air system for restrictions. Rectify as necessary
  • Install a new air filter element as necessary
  • Check the intake system for correct installation and damage. Rectify as necessary
  • Refer to the appropriate service information and check the fuel system. Rectify as necessary
Engine hesitates/poor acceleration
  • Engine management system fault
  • Fuel system fault
  • Fuel injector leaking
  • Intake pipe disconnected/damaged after the air cleaner
  • Transmission system fault
  • Accelerator pedal movement restricted (carpet, mats, etc)
  • 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 appropriate service information and check the fuel system. Rectify as necessary
  • Check the fuel injectors for leaks. Rectify as necessary
  • Check the intake system for correct installation and damage. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTCs and refer to the relevant DTC index
  • Check that the accelerator pedal is free from restriction. Rectify as necessary
Engine backfires
  • Engine management system fault
  • Fuel system fault
  • Intake pipe disconnected/damaged after the air cleaner
  • Variable camshaft timing system stuck active
  • 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 appropriate service information and check the fuel system. Rectify as necessary
  • Check the intake system for correct installation and damage. Rectify as necessary
  • Check the operation of the variable camshaft timing system. Rectify as necessary
Engine surges
  • Engine management system fault
  • Fuel 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
  • Refer to the appropriate service information and check the fuel system. Rectify as necessary
Engine detonates/knocks
  • Engine management system fault
  • Fuel system fault
  • Intake pipe disconnected/damaged after the air cleaner
  • Variable camshaft timing system stuck active
  • 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 appropriate service information and check the fuel system. Rectify as necessary
  • Check the intake system for correct installation and damage. Rectify as necessary
  • Check the operation of the variable camshaft timing system. Rectify as necessary
No throttle response
  • Engine management 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
Throttle response poor
  • Engine management system fault
  • Positive crankcase ventilation system blocked/leaking
  • Transmission system fault
  • Dynamic stability control event
  • Intake pipe disconnected/damaged after the air cleaner
  • 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 integrity of the positive crankcase ventilation system. Rectify as necessary
  • Using the Jaguar Land Rover approved diagnostic equipment, check the transmission control module for related DTCs and refer to the relevant DTC index
  • No fault - Accelerator pedal response may be temporarily reduced or inhibited when the dynamic stability control is active
  • Check the intake system for correct installation and damage. Rectify as necessary