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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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