Exhaust Pressure Sensor High
The POWERSTROKE-P0473 (Power Stroke) diesel fault code means: Exhaust Pressure Sensor High. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- beginner
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What Are the Symptoms of POWERSTROKE-P0473?
- Check Engine Light on
- Possible reduced power
What Causes POWERSTROKE-P0473? (Most Likely First)
- Failed sensor High
- Open signal or ground wire, or a short to voltage High
- Corroded connector Moderate
Can I Still Drive with POWERSTROKE-P0473?
Yes, but fix soon. POWERSTROKE-P0473 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 does P0473 mean on a Power Stroke?
P0473 means Exhaust Pressure Sensor High. The exhaust pressure sensor signal is above its normal range.
Is P0473 a Power Stroke-specific code?
No. P0473 is a generic OBD-II code defined by SAE J2012, so it means the same thing on any vehicle that sets it. The exact conditions Ford uses to set it on its diesels are in Ford service information.
Mechanics Guide Step-by-step diagnosis
How Do You Diagnose POWERSTROKE-P0473?
Inspect the sensor and any pressure tube between it and the exhaust for cracks or blockage.
With the engine off, compare the reading with barometric pressure.
Check the sensor reference voltage, ground and signal.
Sources 1
This page is built from documented references. Verify against your own service info before repair work.
- SAE J2012Diagnostic Trouble Code Definitions (defines P0473 as a generic OBD-II code)
P0473 on Other Platforms
The same code ID appears across other engines, vehicles, and equipment. Diagnostic flow varies by platform — see the matching breakdown:
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