Release the Cancel button once the LED lights come on. This resets both the printer and the NVRAM together. Press and hold the Reset button near the back of a 5P or 6P printer as you turn on the power. Holding it for less than 20 seconds resets the printer only.
Once the throttle body is exposed, spray the throttle-body cleaner inside the air duct, and use the brushes to gently dislodge the dirt, gum and varnish that are present. Note: Be very careful not to let the thin, plastic spray nozzle (or anything else!) fall into the throttle-body opening.
How To: Clean Your Throttle Body. Your throttle body is a very important and commonly neglected part of the engine. A dirty throttle body can cause delayed throttle response, hard gas pedal, and a high or wavering idle. Cleaning the throttle body is a simple procedure and just about the same on every car.