Page 509 - Foton Workshop Manual - Tunland (AT)
P. 509

DIAGNOSTICS - ENGINE CONTROL SYSTEM                          04-363


                      Fault phenomenon                 Possible reasons                      Refer to
                                                  3. Turbocharger system

                                                  4. EGR system
                                                                                  manifold pressure (boost) is
                                                  5. Intake manifold (boost)      below normal
                                                  pressure sensor or circuit                                         04

                                                  6. ECM
                                                  1. Exhaust system

                                                  2. Turbocharger system
                                                  3. Intake heater

                                                  4. Intake manifold (boost)      Chapter 04 Diagnosis- the
                  Intake manifold air             pressure sensor or circuit      motor control system, intake
                  temperature is higher than                                      manifold air temperature is
                                                  5. Radiator
                  technical specification value                                   higher than technical
                                                  6. Fan                          specification value
                                                  7. EGR system

                                                  8. Cooling system
                                                  9. ECM

                                                  1. Postprocessing system

                                                  2. Intake system
                                                  3. Fuel system

                                                  4. Intake manifold pressure
                                                  temperature sensor              Chapter 04 Diagnosis- the
                  Black smoke - plenty                                            motor control system, back
                                                  5. Turbocharger                 smoke - plenty

                                                  6. Crankcase ventilation
                                                  system
                                                  7. Injector

                                                  8. EGR system
                                                  1. The exterior or interior of
                                                  an engine or support
                                                                                  Chapter 04 Diagnosis- the
                  Excessive vibration             2. Engine mounting              motor control system,
                                                  3. Body                         excessive vibration

                                                  4. Chassis

















                                                                                                         Page 509
   504   505   506   507   508   509   510   511   512   513   514