5S-FE MK2 Non-Turbo Engine An idle problem you havent heard of [Archive] - Toyota MR2 Message Board

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Prepare to have your mind blown, this problem is confusing me. When my 5S is cold, it idles at 2200. When it warms up, the idle starts swinging back and forth between 1100 and 1800 non-stop. Trying to figure out why, I took apart the throttle and everything checks out with the ohm meter except the TPS. With my TPS the IDL switch has more of a spread than it should, it doesnt loose continuity until a good 10 or 15 degrees of throttle movement. According to the specs in the service manual,