How to Adjust the Idle Speed of MG MG6?
2 Answers
After fully releasing the throttle grip, install the air filter and ensure all components are in good condition. Start the engine and let it warm up, then open the choke. First, screw the air adjustment screw all the way in. Second, adjust the throttle screw to ensure the engine can run at a certain speed even when the throttle grip is fully released. Try lowering the idle speed first to reduce the engine speed as much as possible. Similarly, adjust the air adjustment screw to increase the engine speed as much as possible. Repeat these steps several times until you find a satisfactory idle speed.
I used to drive an MG6, and when the idle speed was too low, I figured out how to adjust it myself. First, check if the air filter is clogged—cleaning or replacing it if it's dirty can help improve airflow, which naturally raises the idle speed a bit. Next, clean the throttle body, as carbon buildup can cause insufficient opening. After spraying it with cleaner, the RPM became much more stable. However, truly adjusting the idle speed mainly relies on ECU programming, using an OBD diagnostic tool connected to a computer to modify parameters. But doing it yourself can easily lead to errors, triggering fault codes or affecting fuel consumption. Normal idle speed is around 700-900 rpm, and having it too high or too low is not ideal. I recommend starting with simple maintenance first, and if that doesn’t work, take it to a professional repair shop to check the idle speed motor and sensors.
