Troubleshooting - unstable idle speed of engine

Troubleshooting - unstable idle speed of engine

Fault cause: injector fault

Exclusion method

Check whether the indentation on the sealing surface at the connection between the high-pressure connecting pipe and the fuel injector is regular;
Check the fuel return quantity of fuel injector;
Check whether there are signs of fuel injection at the front of the fuel injector;
Check whether the injector gasket thickness is correct;
Clean or replace the fuel injector and replace the clean fuel;

Fault cause: shock absorber is damaged

Exclusion method

Check and replace the shock absorber;

Fault cause: intake system blocked or leaking

Exclusion method

Check whether the air filter and intake pipe are blocked or leaking;

Fault cause: valve leakage or abnormal valve clearance

Exclusion method

Check and adjust valve tightness and valve clearance;
Cause of fault: engine internal damage

Exclusion method

Analyze the oil and check the oil filter to determine the possible damage;

If the above content does not help you solve the problems related to unstable idle speed of the generator set engine, please contact: sale01@genpartstec.com

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