Question

On my 2007 Mitsubishi Outlander, how do I clean the throttle? I got the engine code P0638

Answer 1

The idle might be high after you clean it, the car might need a idle air reset (which may require dealer or shop) or research is you can do it manually

Take off the intake tubing, You will need some throttle body cleaner, a rag and a brush. push open the throttle plate and spray  throttle body cleaner and use the brush to clean it. and wipe with the rag.

Answer 2

P0638 MITSUBISHI Code - Throttle Actuator Control Range/Performance

Read more: https://www.autocodes.com/p0638_mitsubishi.html