What causes unstable idle speed in WEICHAI Engine?
- LLori WatsonAug 17, 2025
If the idle speed of your WEICHAI Engine is unstable, the issue might be due to an air leak in the air intake pipeline, so check it. Another potential cause is a faulty spark plug or ignition system, so inspect the spark plug and high-pressure line. Also, verify that the pressure of the gas metering valve isn't too low by checking whether the pressure reducer solenoid valve and gas pipeline are smooth. The electronic throttle could also be at fault, so check or replace the electronic throttle valve.