mxu 550 exi Manuale-dofficina : Pagina 97

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Pagina 95

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Pagina 96

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Pagina 98

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Pagina 99

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          5. FUEL INJECTION SYSTEM                                        MXU 500EXi/MXU500i




 TROUBLESHOOTING
 Engine won't start                          Backfiring or misfiring during acceleration
 · Battery voltage too low                   · Ignition system malfunction
 · Fuel level too low
 · Pinched or clogged fuel hose              Poor performance (drive ability) and poor
 · Faulty fuel pump operating system         fuel economy
                                             · Pinched or clogged fuel hose
 · Clogged fuel injector                     · Faulty fuel injector
 · Faulty spark plug or wrong type
 · Clogged Airflow Bypass Valve
 · Wet spark plug




 Engine stall, hard to start, rough idling
 · Intake air leak
 · Fuel contaminated/deteriorated
 · Pinched or clogged fuel hose
 · Idle speed miss adjusted
 · Wet spark plug




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