Service engine light on, Code E085 1992 Allante
 

MY service engine light is on with code E085 , I have replaced the ICM and i am trying to adjust .When i disconnect the jumper on the ISC and note the the reading the DIC is 4.6 , i turned the plunger almost all the way out and the throttle angle does not change,. I have adjusted the TPS sensor to the correct parameter. How can i get my throttle angle to change? thanks