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Message: [QUOTE="IHPowerstroke7.3, post: 1281557, member: 7642"] I understand that, pulse width is duration of injection. Fuel pressure is just supply pressure to the fuel side of the injector. It was explained that PCM is increasing pulse width in order to meet mass fuel desired because Icp is low. I call bs on that because I'm certain the PCM isn't smart enough to do that and also it's not setting a code for low Icp like it should (if it's really that low). I can hold my foot to the floor and when it shifts into overdrive at wot, fuel pressure returns to 60 psi. Just trying to wrap my head around what could have changed to start dropping fuel pressure now if the setup hasn't changed. Not being my truck, I can only go by customers word. [/QUOTE]

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