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Re: [T3] High Idle - Throttle Valve Switch Problems


You say yours is a 69 with "likely" a 72 engine.. ?  You need to sort out exactly what you have by looking at each piece of the FI on your engine.  If you still have a 69 manifold, check to see if your pressure switch is disconnected.  On my car, I had high idle until I found all of the vacuum leaks.  It took me a while to find that the pressure switch hose (found only on 68-69) was missing.  With the later throtte valve switch, I guess you wouldn't have a pressure switch anymore, but your manifold might still have that open hole that would need to be plugged somehow.  

-Mark Fuhriman

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