High idle speed out of no where.

[SlowStang2]

I took it to a shop to get the codes. A code came up saying, yes, the TPS is bad. Now I have been through something like this before(finding out the problem, fixing it, when it was just another problem instead), but I'm getting the replacement tomorrow. I don't like how it just failed for no reason though.

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94' Stang GT Convertible Cobra upper&lower, Mac cold air w/K&N, BBK equal length shorties, BBK offroad H-pipe, American Thunder cat-back, BBK T/B 65mm, 24lb injectors, Pro-77mm MAM, pulleys, aluminum driveshaft, 3.55s 14.4@100. (Sad, i know. i have stock heads)