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mark houghton mark houghton is offline
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Join Date: Jul 2008
Location: Central Washington State
Posts: 3,893
Originally Posted by zaidigonzo View Post
where is the overboost sending unit?
It's not a sending unit, it's a simple pressure sensitive switch that's normally closed. It's mounted on the boost recirculation manifold, beneath (or maybe beside) the IC on it's left side and toward front of the car. Hard to explain, and mine is no longer in the stock location.

I cropped it out of a larger picture to at least show it's appearance (sorry so small, but cropped after all). Ivory colored, single white wire going to it. Find it, remove it, hook an ohm meter to it, put air pressure to it gradually and see at what pressure it "opens".

Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.

Last edited by mark houghton; 11-10-2010 at 04:27 PM..
Old 11-10-2010, 04:19 PM
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