Surging at idle on stock tuning

jtlane

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I have a 6.0 with 155 injectors its surging bad at idle but when the tuner is on is normal idle but missing under wop throttle bad any ideas I unplugged icp sensor no change
 

79jasper

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Year?
My surging was from a leaking hpop. Spit out the end plate.
(155's as well, currently no tuning. Idles smooth)

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79jasper

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Stock nozzles? Or?
I bet you are losing icp or fuel pressure. That's why it "misses" under load.

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