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2016 TOYOTA COROLLA
1.8L I4•FWD•CVT•gas•2ZR-FE
1 active safety recall on this vehicle — view recalls
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Repairs395Labor499Torque3375Fluid7DTC1931Battery1Maintenance0Recalls1
P0471moderate severityPowertrain

Exhaust Pressure Sensor Range/Performance

on 2016 Toyota Corolla 1.8L I4 · FWD

What this code means

The exhaust pressure sensor signal is present but does not match expected values under operating conditions. Readings are implausible compared to engine load and RPM.

Symptoms

  • Check engine light on
  • Erratic engine performance
  • Increased exhaust emissions

Common causes

  • Restricted or leaking sensor tube
  • Faulty exhaust pressure sensor
  • Contaminated or sooted sensor
  • Wiring resistance issues

Diagnostic steps

  1. Retrieve code and review freeze frame
  2. Inspect pressure tube for soot or restriction
  3. Verify sensor readings against actual pressure
  4. Replace sensor if out of specification
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🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years. Spot an error? Use the Help link above — a human reads every report.
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