hey im wondering if anyone can tell me wat is wrong or could be wrong....well first of all like 3 weeks ago i was pulling out of a parking lot and my engine light came on and hasnt went off since...i got it checked and the computer comes up sayin its the emission control systemor somethin but the car has been running fine...recently tho when im at a stop light my rpms go to like 0.5 and keep going to 1 and then bak down..while this is happening the engine is shaking like its dying or struggling...let me know. thanks..btw my car is auto so mayb its the tranny? iono but i heard they dont last

 

fast idle air control valve? If the computer said your emissions I would check you o2 sensor.