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So I'm in the process of changing timing belt, valve cover gaskets, etc. I took off the throttlebody last night and noticed that when I turn the wheel on the side, the flap inside only opens about a quarter of the way, if that. How open should this be if it's basically at WOT? Should that flap be horizontal?
 

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since our throttle bodies are electronically activated, that is about normal for the cable to only pull a quarter of the way.
 
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