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.
Throttle Body. Air plays a vital role in enabling fuel combustion in your engine. And making sure your engine receives the right amount of air needed for combustion is your vehicle's throttle body. Now, this component is essentially comprised of a housing with an air valve inside. Like the rest of the valves in your car, the air valve is what controls airflow into your engine via its intake manifold.