Is Code P0638 common? Is this a throttle body replacement or a sensor issue? Or the beginning of a deep, winding rabbit hole?
This is the code I received after removing and cleaning (walnut blasting) the EGR and air intake manifold.
This is the code I received after removing and cleaning (walnut blasting) the EGR and air intake manifold.
- 2014 CJAA - Code: P0638 - Throttle Actuator Control (Bank 1): Range Performance