Riffraff Diesel Technical Knowledge Center
OBS 7.3 to Super Duty UVCH Mod: Better connections, better operation
Mar 4th 2026
If your OBS 7.3 (’94.5–’97) has random misses, contribution codes, rough cold starts, or the classic “it runs better when I wiggle the valve cover plug”… you&rsquo
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7.3L Powerstroke ICP and IPR Diagnosis/Testing/Set-Up with AutoEnginuity
Feb 18th 2026
Troubleshooting Injection Control Pressure (ICP) or Injection Pressure Regulator (IPR) issues can be done with AutoEnginuity (Ford Enhanced) quickly.
AutoEnginuity can be found here: https://www.riffr
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Every Recall Issued For the 1994-2003 Ford Equipped with the 7.3L Powerstroke
Feb 6th 2026
There’s dozens of recalls associated with our trucks. Some of these we’re all aware of, some are news to us, and some (the mass majority) truck owners were never even told about. It’
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7.3 Powerstroke PCM Code Locations (1994–2003) + How to Decode What You’re Looking At
Feb 6th 2026
Ford didn’t make it easy: on a 7.3 truck you’ll see multiple “PCM codes” that mean different things (hardware vs. software vs. emissions calibration). The trick is knowing wher
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7.3L Powerstroke Torque Ratings
Jan 22nd 2026
Bolt torque for the 7.3 Powerstroke shouldn’t be a mystery. So we collected everything from Ford’s service manuals and other reputable sources, and listed them all below. Here’s your
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