no the car would not stall. the rpm would increase. it was just like pulse. it would drop and rise again. and yeah how do i clean iacv or jammed egr. trust me it does goes to 150. not exaggerating. or may be it was 200 but it was way low. and the pulsing would continue but lets say next red light it won't do it at all. right now it's in garage. when it comes back i will clean the iacv but first i gotta know how and second i would check for jammed egr