Intake Air Temperature Sensor Circuit Low Input
The POWERSTROKE-P0112-73 (Power Stroke) diesel fault code means: Intake Air Temperature Sensor Circuit Low Input. This is a moderate severity code.
Unverified. We could not confirm this code's definition against freely available manufacturer documentation, so treat the meaning, severity and fix guidance on this page as unconfirmed. Check it against the manufacturer's service information for your exact model and serial range before acting on it. This page is kept out of search engines for that reason, and we are working through this family manual by manual.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- beginner
- Estimated cost
- $20-$60
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View pilot availability →What Are the Symptoms of POWERSTROKE-P0112-73?
- Slight smoke on cold start
- CEL
- Minor MPG loss
What Causes POWERSTROKE-P0112-73? (Most Likely First)
- Failed IAT sensor Very Likely
- Short in IAT signal wire Likely
Can I Still Drive with POWERSTROKE-P0112-73?
Yes, but fix soon. POWERSTROKE-P0112-73 is rated moderate severity. It is not an immediate stop-driving fault, but it will not clear itself — book the repair rather than ignoring it.
Frequently Asked Questions
What is P0112 on a 7.3L Power Stroke?
P0112 on a 7.3L Power Stroke (1994-2003) indicates: Intake Air Temperature Sensor Circuit Low Input. This is a known diagnostic trouble code on this engine family and typically points to the causes listed above.
Can I drive with P0112 on my Power Stroke?
Yes, you can generally drive with this code, but diagnose it soon to prevent further damage.
How much does it cost to fix P0112?
Repair cost is typically $20-$60 depending on the underlying cause and whether you DIY or use a shop. Diagnostic time alone runs $100-$180 at most independent diesel shops.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose POWERSTROKE-P0112-73?
Monitor IAT PID -- should match ambient at cold start.
Replace sensor ($15-$30); very cheap fix.
Which Vehicles Commonly Get POWERSTROKE-P0112-73?
- 1994.5-1997 Ford F-250/F-350 7.3L Power Stroke
- 1999-2003 Ford F-250/F-350 Super Duty 7.3L Power Stroke
- 1999-2003 Ford F-450/F-550 Super Duty 7.3L Power Stroke
- 1994.5-2003 Ford E-350/E-450 7.3L Power Stroke
- 2000-2003 Ford Excursion 7.3L Power Stroke
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