Throttle Body Idle Adjusting Screw Kit - FTO 2.0 V6 DE3A The one that adjusts the engine idling. The screw is made of a hard type of brittle bakelite plastic, the aluminium has a nasty habit of corroding around it and it gets stuck in the hole so you end up destroying the screw head trying to adjust the idle. The o ring fits on the top of the screw. Kit Consists :- Adjusting Screw O'Ring For Throttle Body Exploded Diagram Without Traction Control Click HERE With Traction Control Click HERE Mitsubishi Part Numbers MD614948 Screw MD608806 O ring