The problem is the ramping of the ICP. The IPR cannot compensate fast enough when returning to an idle so it cannot correct very quickly. The only way to fix it is to have a less aggressive ICP map.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years.
Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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