Error code

OBD2 P0470

OBD2P0470
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Exhaust Pressure Sensor.

Severity

moderateCan drive, but performance may be affected and emissions could increase.

Summary

P0470 indicates an issue with the exhaust pressure sensor circuit on your vehicle's exhaust system. This sensor is commonly found in turbo diesel engines and helps monitor backpressure to manage emissions.

Symptoms

  • Check engine light illuminated
  • Reduced performance or power

Common Causes

  • Damaged, burnt, shorted, disconnected, or corroded wiring and/or connectors
  • Defective exhaust pressure sensor
  • Clogged or restricted exhaust gas feeding tube
  • Boost pressure leaks on applications where this sensor is used for boost control
  • Blockages or restrictions in the exhaust system downstream of the backpressure sensor

Diagnosis

  1. Inspect wiring and connectors for damage or corrosion
  2. Check exhaust system for blockages or restrictions downstream of the sensor

Fixes

  • Replace damaged wiring or connectors
  • Replace defective exhaust pressure sensor

FAQ

Where is the exhaust pressure sensor located?

The location varies by vehicle, but it's typically near the turbocharger or diesel particulate filter. Consult your owner’s manual for specific guidance.

Can I drive with P0470 code?

You can drive, but performance may be reduced and emissions could increase due to inaccurate sensor readings.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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