engine revs to 2000 rpm on its own Reply #15 – June 29, 2017, 04:35:45 PM Quote from: TurboCoupe50;461640Not exactly the proper method but if it works you're golden...After owning 15 '87-'88 TC, I learned long ago that a high idle that is usually corrected on a restart is TPS related... Never seen a o2 sensor make any difference(or on any other EEC-IV) and replaced a few because of CEL indicating they were not switching...I explained the short version. Did it step for step per NATO.. Quote Selected