Buick Skylark Engine Idle High

When I Start My Car The Engine Idles High And Revs Until It Dies Out,the Tailpipe Is Not Attached And I Already Checked The Vacuum Lines

When I Drive For Awhile It Starts To Rev Up While My Foot Is On The Break. Then Once I Put It In Reverse T Cutts Off....it Will Start Back...

My Daughter Just Bought This 92 Skylark. 3.3l V6 Auto. Check Engine Light Was On. Codes Showed O2 Sensor And Tps. Both Replaced And Tested...

Hi, I Have Replaced The Egr Valve, Iac, And The Tps. It Has New Plugs And Wires And It Still Has The Same Issue.

My Vehicle Has A Very High Idle, So I Replaced The Iac And The Tps And Also The Egr Valve. Still Nothing Changed, It Still Idles High And...

It Has A Very High Idle Cannot Figure It Out Replaced Egr Valve Throttle Positioning Sensor. Did A Complete Tune Up New Fuel Filter....