Hello,

I have a 07 RX8 and recently I have noticed the car is getting hard to start up (actually it was an overnight thing). Also there is a definite lack of power when only when starting to move (engine almost feels its stuttering and unresponsive). I am guessing it is not a compressions related issue but a coils or spark plugs failure. When the car gets going (over 4k rpm) it drives fine. I also had the battery tested and it was fine. I changed the spark plug once but never changed the ignition coils yet.

I posted a video on youtube of the engine start up.

https://www.youtube.com/watch?v=6S-e...ature=youtu.be

Thank you

 

Check the coils