new here, big problems with my ms3
 

Hi, bought a true red mspeed3 about 4 months ago, getting close to 7.5k miles already. Over this last weekend the check engine light came on, i went straight to the dealership. They kept the car for a full day and returned it saying that the pcm was out of calibration and just needed updating. My issue with this is the noticable decline in performance beginning immediately before the light came on, and ever since. I picked the car back up yesterday, have already run a quarter of a tank thru it since, and it honestly almost feels like the mazda3 4 door they put me in as a rental. Any ideas? this is my first 4 cyl car, and first car w/ a turbo, almost feels like its not getting proper boost maybe?

Thanks in advance for any help or input on the topic!

-Ken
08 MSP3 Sport
True Red

Take it back and tell em what's up. If they jack you around take it to a different dealer...At least you got the Warranty so no $$ out of you pocket. :)