Page 971 - Workshop Manual - Tunland (2017)
P. 971

DIAGNOSTICS - ENGINE CONTROL SYSTEM                          04-285

                                                                                                                     04
                      Fault phenomenon                 Possible reasons                      Refer to
                                                  9. Oil maintenance cycle

                                                  10. Engine oil
                                                  1. Oil condenser
                                                                                  Chapter 04 Diagnosis- the
                                                  2. Oil temperature
                  Engine oil temperature is                                       motor control system, the
                  higher than the technical       3. Lubrication system           engine oil temperature is
                  specification value                                             higher than the technical
                                                  4. Engine oil
                                                                                  specification value
                                                  5. ECM
                                                  1. Turbocharger                 Chapter 04 Diagnosis- the
                  Oil leakage of turbocharger                                     motor control system, il
                                                  2. Turbocharger oil pipe        leakage of turbocharger

                                                  1. Engine oil

                                                  2. Odometer
                                                  3. Electronic throttle valve

                                                  4. Intake system
                                                  5. Exhaust system

                                                  6. Turbocharger system
                                                                                  Chapter 04 Diagnosis- the
                                                  7. Injector
                  Excessive fuel consumption                                      motor control system,
                                                  8. Intake manifold pressure /   excessive fuel consumption
                                                  temperature sensor

                                                  9. Fuel system
                                                  10. Vehicle Speed Sensor

                                                  11. Postprocessing system
                                                  12. EGR system

                                                  13. ECM

                                                  1. Injector
                                                  2. EGR system

                                                  3. Cooling system
                                                                                  Chapter 04 Diagnosis- the
                  White smoke - plenty            4. Postprocessing system        motor control system, white
                                                                                  smoke - plenty
                                                  5. Fuel
                                                  6. Cylinder gasket

                                                  7. Cylinder cover

                                                  1. Vacuum system                Chapter 04 Diagnosis- the
                  The vacuum pump does not        2. Vacuum pump                  motor control system, the
                  keep enough vacuum                                              vacuum pump does not keep
                                                  3. Vacuum booster               enough vacuum
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