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Will barely idle and wont stay at constant throttle without dying?

(1990 Ford F-250)
in Stony Point, NC on February 06, 2016
replaced EGR vale,tube and sensor,idle air control,throttle position sensor,vaccum solenoid,fuel pressure regulator,full tune up. will run when feathering the throttle, out of ideas
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Popular Answer
on May 23, 2016
Try replacing your injectors. If you have a idi your mechanical pump could be bad
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