What's the reason for the difficulty in starting the Trumpchi GS5?
1 Answers
The following are the reasons for the difficulty in starting the Trumpchi GS5: 1. Poor fuel delivery (clogged fuel pump filter; clogged fuel filter; fuel pump check valve not closing properly, etc.). 2. Too lean or too rich air-fuel mixture. 3. Air intake and vacuum system leaks. 4. Loose or poorly connected plugs and wiring. 5. Low fuel pressure or abnormal pressure retention. 6. Poor injector performance (carbon deposits, gum clogging, etc.). Here is an introduction to engine starting difficulties: 1. To troubleshoot hard starting issues in electronically controlled engines, conventional and specialized diagnostic methods can be used, or the three essential elements for normal engine operation can be checked (high-voltage spark, fuel line pressure, and cylinder pressure). Generally, if the engine starts with difficulty but runs normally afterward, it indicates no major mechanical issues. 2. When addressing engine starting difficulties, the causes mentioned above can be checked one by one. Typically, starting difficulties are more related to fuel system and electronic control issues, with fewer cases involving the ignition system (spark plug malfunction, faulty ignition coil). When checking electronic control circuits, a voltmeter and ohmmeter can be used. 3. Inspect wiring connections, check the air flow meter, coolant temperature sensor, and ECU power circuit (e.g., main relay, fuses, etc.), and examine the injection signal circuit (e.g., ECU, wiring, injectors) for loose connections or corrosion. For cold starting difficulties, engines equipped with a cold start injector should focus on checking the cold start system. The cold start injector should primarily be checked for electromagnetic coil functionality.