P0472 — Exhaust Pressure Sensor Range/Performance
Drive with caution — fix soon.
What P0472 means
This code means the exhaust pressure sensor is sending readings that don't match expected exhaust conditions, so its values are outside the normal performance range. It usually points to a worn sensor, blocked or leaking sensor tubes, an actual exhaust restriction, or wiring issues. It's a moderate code tied to emissions and drivability and is generally fixable with a sensor or exhaust repair.
Common symptoms
- Check engine light is on
- Reduced engine power or limp mode
- Rough idle or hesitation under load
- Increased exhaust smoke (especially on diesels)
- Lower fuel economy
Common causes
- Worn or drifting exhaust pressure sensor
- Blocked, leaking, or cracked sensor tubes
- Actual exhaust restriction or clogged particulate filter
- Damaged wiring or poor connector contact
- Carbon buildup affecting sensor readings
Typical repair cost
$150 – $450
Varies by vehicle and root cause.
Frequently asked questions
Can I keep driving with a P0472 code?
Usually yes for a short time, but don't put it off. Out-of-range readings can affect EGR and emissions and may cause reduced power, so get it diagnosed within a few days.
How much does it cost to fix a P0472 code?
Expect roughly $150 to $450. A sensor replacement or tube cleaning is on the lower end, while clearing an exhaust restriction or chasing wiring problems can push the cost higher.
Is a P0472 code serious?
It's moderate. The car typically stays drivable, but performance and emissions can suffer, and on diesels it ties into the particulate filter, so it shouldn't be ignored long term.
What's the difference between P0472 and a sensor circuit code?
P0472 means the sensor is working electrically but its readings are out of the expected range, often due to a real exhaust issue or a drifting sensor, rather than a simple wiring short or open.