Hi guys, this is my 1st post.
I have a 2004 rx8, was running fine until 2 months ago.
I had starting problems. i installed a new starter, problem solved.
After a few weeks starts having issues when shiftin (mostly from 1 to 2nd gear).
It losses power. Sometimes it shuts completely off.
I have change coils,sparkplugs,the cables,cleaned : the crankshaft sensor,the massairflow sensor,cleaned the throttle. If the car is running , it runs just fine, there are no weird noises comming from the motor. the oil ,oil filter and airfilter has been changes 2 months ago aswell.
The car idles fine except when i put it in gear (1st), the rpm than starts to wobble between 750 and 1500. After trying a lot of things now i'm clueless.
what could be the problem for my car???????
Any tip, advice , idea would be helfull.
Thanks in advance...

 

Check the neutral safety switch at the clutch pedal