WOW! Thank you, Bill! That anomaly escaped me completely.
Here's another weird thing about it....which may be related to the internal clock thing: The idle is fast. It has a warm idle of around 800 give or take based on the tachometer (since no data) but when a functionally good PCM is in it, it's normal. When a minute isn't quite a minute, this would make sense.
The guy isn't worried about it as it's a worn-out ranch pickup. I just wanted to do some computer-based diagnostics on it even though it was an obvious injector issue once all mechanical possibilities were ruled out.
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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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