The car is a 2002 996. It is like the fuel cuts out for a milli second. It was like that when I bought the car. It didn't trip any codes at PPI time. Shop drove and gave clean bill of health. My 00 Boxster S never did that. Different motor but is that normal.

 

Normal Vario-cam stutter from what I understand.

 

My 04 C4S does the same. I only will "feel" it when light throttle around 3,000 to 3,200 - sometimes. I also believe that its the variocam.

 

Our 2002 had an occasional strong drivetrain thump when cruising, didn't notice rpm. At first it didn't set a code and we just thought it was the transmission hunting between gears. But then it started stalling and set P0335, and after replacement of crank position sensor all faults ceased.

 

Apples to Oranges.

 

^^This^^

It is magnified if the car has a LWFW.

 

Well darn,, I thought it was the throttle pedal module being worn, guess that micro shudder isn't going away...

 

Thanks guys.
David