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1994 to 1997 International 3000 & 4000 Series T444e and DT466 equipped trucks and busses.

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Old Thu, January 13th, 2022, 08:30 PM
Dr Goodwrench Dr Goodwrench is offline
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trying to revive a 1997 4700 T444e Dump truck with 7 speed Spicer and NO frills, BUT only 44k miles on her! Keeps defaulting to 160hp from its 190HP Engine Family Rating Calibration. DTC 622 and 623. Spent hours with Navistar central and Nav Kal to NO avail! New ECM and VPM not available. Navistar says "Good Luck".
Hoping this will bring her back as VPM and all ECM functions are good, just the calibration file on the VPM refuses to delete or be read.
Fingers crossed
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Old Fri, January 14th, 2022, 08:19 AM
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Power Hungry Power Hungry is offline
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Originally Posted by Dr Goodwrench View Post
trying to revive a 1997 4700 T444e Dump truck with 7 speed Spicer and NO frills, BUT only 44k miles on her! Keeps defaulting to 160hp from its 190HP Engine Family Rating Calibration. DTC 622 and 623. Spent hours with Navistar central and Nav Kal to NO avail! New ECM and VPM not available. Navistar says "Good Luck".
Hoping this will bring her back as VPM and all ECM functions are good, just the calibration file on the VPM refuses to delete or be read.
Fingers crossed
If you can do without the ECM/VPM for a couple days, please send it in to us and we can try to diagnose the issue. New VPMs are available, but they need to be programmed with the original data which we should be able to acquire from the original VPM.

Let me know if this is something you'd like to proceed with.

Thanks!
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