View Single Post
mark houghton mark houghton is offline
mark houghton's Avatar
Join Date: Jul 2008
Location: Central Washington State
Posts: 3,893
Damn, this is a tough one. Lots of great input, but still....
It sounds like it's boiled down to two things. Apparently the metering plate arm is not being drawn down sufficiently to keep the switch - and thus the pumps - actuated. The engine is sucking in air, and you've proven that it will run - and run well - as long as you manually push the plate down. There must either be (1) too little air (not enough engine vacuum) to pull the plate down and keep the pumps running or (2) something is causing a drag/resistance on the metering plate arm and preventing free movement. But on second thought even those 2 theories don't hold any water because you've stated that your pumps run continuously when you disconnect the switch; thus, you should get fuel to the injectors PROVIDED the metering arm is being pulled down enough to start the flow of fuel to the injectors. God knows it's something simple we've all missed, but at this point I'm thinking fuel distriburtor issues. Unfortunately I don't know enough about the inner workings of the distributor to point you where to start looking.
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.
Old 10-28-2010, 09:12 PM
  Pelican Parts Catalog | Tech Articles | Promos & Specials    Reply With Quote #31 (permalink)