yeah the opti just got replaced 2 weeks ago so i dont think thats it and it only seems to be doing these things after it gets hot and runs for awhile.its not throwing no codes or anything but i'm going to have it scanned to see if it has a history or anything at all.could the computer ever go bad and make the motor do these little things?the car has 200 thousand miles on it and the motor is outta jegs with 40 thousand on it and all the sensors are good except for the mass air flow.could that make it do that?the computer is also the original for the car to.any help thanks.