A friend actually Brought this to my attention, but my car seems to be sputtering ever so slightly, and the car tries to adjust by idling at higher rpms. I recently changed the plugs maybe a month ago. What could be the issue here?

 

Did you only do the plugs? A boost leak is another possibility, I'd run a leak test.

 

Check each plug's torque.


Listen for a vacuum leak.


Replace the fuel pressure regulator relay.