Why Does the Idle Speed Increase After Replacing the Throttle Body Assembly?

[DeDelaney]

Because the throttle body was not reset after cleaning. Methods to adjust idle speed: Go to a 4S shop or manually match and adjust. First, turn the key to the power supply position (computer self-check), with the car in the off state, let it sit for about 10 seconds, then quickly press the accelerator pedal all the way down, hold for 15 seconds, then quickly release the pedal, turn off the ignition, remove the key, and let it sit for about 15 seconds. Start the car normally, and the matching is complete. Reasons for idle speed: When the vehicle is in the parked state and the engine is started, the lower speed at which the engine runs stably is the parking idle speed; during gear shifting, if the accelerator pedal is not pressed or is released while driving, maintaining a small throttle opening, the engine speed and the parking idle speed are the same, which is the driving idle speed.