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Stalling and loss of power 850 1993

posted by  Olias on  Mon Aug 23 06:27 CST 2010
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last visit: Tue Aug 31 06:21 CST 2010
[RELATED]

Ok thanks. On the subject of testing the fuel pressure I have a couple more questions. What's the difference between "jumping" the Fuel Pump Relay and having the key in the II position (engine not running)? Only reason I ask is that when reading someone else's reply to a post on this exact same thing in another forum this person said to take like 3 readings (maybe 4). One with just the engine not running but key turned to II position, one with car idling, one with the motor running at WOT for a couple seconds. Can't remember what the 4th might have been.
My other question is, just how fast should the needle on the gauge rise? I was under the impression that it should shoot right up being that the system "should" already be under pressure, right? I mention this only because for my test the needle crept steadily but very slowly up the gauge. I would have thought it would pop right up. Anyway....






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