long story short i finished my y8 manifold swap yesterday and have had some issues

im using my y7 tb with a y8 rotor, and a y8 5 spd manifold with the IACV holes plugged

my map and tps arent mixed up, i have the proper coolant line going to the iacv, my vacuum lines are in the correct position


my idle is pulsing between 1000-2000 rpms rising then dropping then rising ect


also i think there is air in the coolant system, ive tried draining and refilling but the large lower hose doesnt seem to get hot like the others and feels empty

any help would be great, i already missed school to stay home and try and get this solved


thanks in advance

 

did you convert from 3 wire iac to 2 wire?

 

im using my 3 wire iacv from my y7 throttle body and using my y7 ecu

 

http://www.youtube.com/watch?v=PgWJ9XRh5g4


idle is exactly like that

 

Did you try switching your plugs for the MAP and TPS sensors on the throttle body? They both look identical to someone that wires everything up quickly. Hell, it gets me just about everytime.

 

what yeah y8 mani did u get if u got 98 -00 they have 5 extra vacum ports on flange that bolts to motor you have to block them off