91 f350 - Ford Powerstroke Diesel Forum
7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines.

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Old 04-13-2011, 04:05 PM
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91 f350

hey just bought a 91 f350 non turbo couple things that i have noticed drivin around is that when i go up a hill or try to pass somone it will lag all the way down to 1200 rpm before it kicks down what could cause this and i am wonderin if there is any relativly cheap things to do to milk some power out of this thing i am mechanicly able and is this motor loaded down with smog control stuff if it is what happens if i rip it out will it give me more power not worried about inspections not required where i live anything yall got would be great thanks
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Old 04-18-2011, 11:31 AM
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The motor doesnt really have any smog devices, wont even have a cat. The FIPL (I forget what its called, that might be it. Maybe TPS) is out of adjustment. If its not called a FIPL I forget what its called. Anyways its a device on the IP that sends a voltage measurement to tranny which then in turn tells it when to shift (different voltage meaning different throttle positions.
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