I finally finished building my motor and put it in this weekend. It runs awesome except for one wierd problem. If I start it cold, it will idle and jump between 1700 and 2000 rpm's until the fan comes on and the motor is warmed up. Then, it idles fine just below 1000 rpm's..... But, when i rev the motor up, it still wants to jump around consistantly between 1700 and 2000 rpm's until i step on the pedal enough to bring it past 2000 rpm's, then it revs up perfectly smooth. It also does this while i'm driving, i'll be going in 1st gear, and once it hits 1700 the car jumps around until i get it past 2000 rpm's....
WTF?? I thought it could be the iacv but why would it do it after the car is warmed up and while i'm driving it?? plus, it still does it when i unplug the iacv.... i also changed computers and it still remains... any opinions on this bizarre problem would be appreciated. thanks,
-Justin