out of whack pulse width

Powerstroker7.3

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I have been doing some testing on the truck with a different set of injectors and i started to notice problem with the pulse width being way to high at WOT. I have 5 different race files that i have used before all with different shift points and different pulse width settings. i decided to try one of the other race files to see if it was just the one that i was running was wrong but i started to notice that every race file now had a crazy high pulse width. i switched from 5 different ones and they all are reading 4.3ms of pulse width. so now i am at a loss as to what could be wrong, could the chip have gone bad or maybe the idm is acting up and not firing correctly. any help would be great.
 

DieselJpower

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I've been told that low icp/high pressure leak can cause the pcm to compensate by adding more pw. Not sure if it's true but might be something to check out. Maybe the injectors have an issue ?
 

KBMKVIII

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Have you talked with your tuner?
Maybe they can give more insight as to what’s being requested?


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Powerstroker7.3

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I plan on talking with my tuner on Monday and I will start checking for a high pressure leak


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Powerstroker7.3

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He has been talking about it for a while. I think we should go ahead and bite the bullet too


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Powerstroker7.3

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I just stepped up to a 400/400 and plan on staying there. Gonna try and get it dialed in on fuel passes and then I have a progressive controller to throw on it with some nitrous


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