Seven generations and a half accord has high idle speed and slow oil return.

Clean the throttle. It needs to be matched after cleaning. If it still doesn't work, you need to check the throttle position sensor to see if there is any problem. You can also match the negative electrode of the battery with the detection computer or cut off the power. Just use these two methods. If it still doesn't work after matching, there is something wrong with the throttle position sensor.