I experience what seems like a misfire between 2000rpm - 2600rpm. I thought it was a drivetrain related matter because I felt it while driving, but I feel it when stopped, idling in neutral. It seems to be worse after the engine warms up. Any ideas?

 

Had the same problem and changed the EGR valve on the back of the intake manifold and it feels so smooth now... I fell back in love with her

 

Have the PCM scanned for codes.

 

No codes whatsoever.

 

Bump for a worsening problem. Anyone have any other ideas?

 

I had a higher RPM miss that was the result of the screws being loose on the opti rotor button.