i just got a fluidyne radiator and a skunk2 intake manifold installed on my 00 b18c
when i start the car my idle is at 2k then when it warms up it is at 1100,once the car is warmed up or after 15 min of driving the idle goes to 1500 and stays when you press lightly on the gas it bounces between 1500 and 1650 if you press a little harder it bobbs faster and if you go a little farther it revs up.. what the f***k is the deal when you are cruising and you let it rev down to 1500 it jerks bad....whenever you take your foot off the gas it doesnt deselerate smooth its a little jerky what is the problem?...........help!!!!!!!!!!!!!!!!!!!!!!!!!!! !!!!!!!!!!!

 

check all the sensors on the intake manifold...

 

Vaccuum leak near on or near intake manifold.