Intake Air Temperature Sensor Circuit Low Input
Can I Drive?
Yes, But Fix Soon
DIY Difficulty
beginner
Estimated Cost
$20-$60
What does POWERSTROKE-P0112-73 mean?
The POWERSTROKE-P0112-73 (Power Stroke) diesel fault code means: Intake Air Temperature Sensor Circuit Low Input. This is a moderate severity code.
Common Symptoms
- Slight smoke on cold start
- CEL
- Minor MPG loss
Probable Causes (Ranked by Likelihood)
- Failed IAT sensor Very Likely
- Short in IAT signal wire Likely
Step-by-Step Diagnostic Procedure
Monitor IAT PID -- should match ambient at cold start.
Replace sensor ($15-$30); very cheap fix.
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.