Tuesday, May 14th, 2024 AT 11:25 AM
The truck idles rough when stopped and in gear. The truck has had the following recently replaced. All spark plugs, Mass Flow Value, EVAP Purge valve, and electric throttle body. All OEM parts. Have lost 3 to 4 MPG since all were replaced. Do I need to get the PCM flashed? Or ideas on what to do?