Thread: engine cutting out
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Old Thu, March 11th, 2010, 01:59 PM
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I assume that you're doing near full-power upshifts...

Since it happens in the higher HP programs, I would guess that it may be an injection pressure regulator (IPR) response issue. Are you driving a basically stock truck?

On edit:

As far as the "cutting out".....
It only happens at light throttle and I assume it's kind of a jerky on-off type scenario. It may be related to the IPR or possibly a problem with the tune itself. Bill will be able to look at the tunes and make sure that there's nothing screwy. Have some patience and he should be back on here by early in the week.
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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.