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modified 5.9L wont rev out (past 3000 rpm)

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Old 02-10-2013, 08:04 PM
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Default modified 5.9L wont rev out (past 3000 rpm)

My modified 99 dakota rt runs good at low rpms, but dosnt have any power at 3000 rpm or higher. Fuel pressure is at a constant 50 psi even under load. Tried bigger fuel injectors, computer, ignition, no luck. It has a 2800 stall converter. Any ideas??
 
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Old 02-10-2013, 08:07 PM
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Restricted exhaust?
 
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Old 02-11-2013, 02:47 PM
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I checked out the cat....dosnt seem to be restricted, but I might remove it and see what happens. Thanks for the feedback.
 
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Old 02-11-2013, 07:56 PM
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Yep...ran a ba ck pressue test and sure enough it was bad
 
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Old 02-11-2013, 08:01 PM
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Sweet! At least it's a relatively easy fix.
 
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Old 02-11-2013, 08:06 PM
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Old 02-11-2013, 10:28 PM
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Yessir!! Runz great!!
 



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