jarven093

Ok i have this problem ever since i replaced my stock flywheel with a 8.5lbs flywheel; (way before i went to a turbo setup as well) the motor is a D16Z6 and it has an idel problem and this it what it dose..... when i start the car and its warming up it idles fine at 1500 rpms then as the car begins to warm up and the idle goes down to were it should be at temp. ( stock idle is like 850 or something) but as it gets to be warm it starts to rev between 400rpms and 1200 rpms not slow but not fast but very noticable and if i am driving around it wont do it during acceleration or de-acceleration but as i come to a stop it will drop as far as almost killing its self but then wil begin to idle up and idle down through 400-1200 rpms ... I dont have any vacc. leaks maybe a sensor?(there is no check engine light...) what sensor could cause this or could it be the flywheel .... anyone with any help or have had this problem before please help its revving is driving me craZy... thanks

bnut510

i had that disease with a nitrous setup a long time ago. i was told they were vaccum leaks to but i never found the problem. another thing was to chcek the o2 sensor and see if it got clogged up. other than that, it wont hurt the car i dont think. it just sounds crazy