ok this is my first form posting. i have a 00 mazda millenia (mellian edition) the car starts up and idles fine. sounds a little sick tho. if u press the gas peddle its charger fires up and sounds aswome. after a few idle to 6k rpms and back the engin idles nicely. now the issue is that if u put it in gear, the rpms lower until the engin basicly dies out. no noise. everything in the car works like it should. i hooked it to a code tester and theirs no codes to be read. the transmission was sopulaly replaced when i bought the car. any possible information would be greatly appericated.


please ignor my spelling errors.

 

Could be an idle air control valve or a throttle position sensor.