Ya I kinda thought so. I've been messimg around with high idles, surging, and erratic idles and such. I can see where cleaning the TPS especially if you're running aftermarket coated filters. In fact the fist thing I check now is the spring load on the primary throttle plates. If they are so gunked up that they are sticking I can see it stripping the ISC motor shaft. I noticed this while wotking on Booges Brahma.