First, open the fuel filler cap to release the pressure on the fuel system.



Unplug the wiring plug to Idle Speed Air Valve "Y6". Loosen and remove the clamp securing Y6. Remove Y6 along with the two black rubber elbows connected to it by twisting it to the left to slip off the first elbow and then pull upward on the second elbow, which is held snug by a barbed plastic fitting atop the black Air Guide. Set these parts aside.

Unplug the Air Flow Sensor Position Indicator "B2".

Carefully disconnect the vacuum line at the back of the fuel Diaphragm Pressure Regulator "40". I pulled mine too hard and the rubber mushroom fitting came out of my regulator. A little soap and a small screwdriver convinced it to go back in.

Unplug the Electrohydraulic Actuator (EHA) "Y1" at the back of the MCU.