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Old Mon, November 8th, 2010, 09:02 AM
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Troy,

You need AT LEAST 340 PSI while the engine is luke warm. A HEALTHY engine will usually be in the 370-400+ PSI range. Anything lower will usually cause a miss until the engine warms up or the boost comes up a little bit.

Low compression will usually be accompanied by white smoke from the exhaust that burns your eyeballs if you stick your face in it.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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