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12-04-2003, 03:03 AM
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Registered Member
Join Date: Feb 2003
Location: Oshkosh WI
Posts: 69
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The inj leakdown test is done by hooking up a fuel pressure gauge and cycling each inj for a certain amount of time and holding it. By watching the fuel pressure gauge fall you can tell which each one is taking and losing or dropping down the intake uncontrolled. At the ford garages they have a test built into to there diagnostic computer to do this. Known as SBDS and WDS. Its pretty neat. The downfall is that if all your inj are bad then they will all show up good because it goes off of an average.
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