P0471moderate severityPowertrain
Exhaust Pressure Sensor Range/Performance
on 2023 Chevrolet Bolt EUV 65 kWh Single Motor FWD · 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
- Retrieve code and review freeze frame
- Inspect pressure tube for soot or restriction
- Verify sensor readings against actual pressure
- Replace sensor if out of specification
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Other Powertrain codes on this vehicle
P0005
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P0006
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P0007
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P0008
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P0009
Engine Position System Performance - Bank 2
P0026
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P0027
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P0028
Intake Valve Control Solenoid Circuit Range/Performance Bank 2
P0029
Exhaust Valve Control Solenoid Circuit Range/Performance Bank 2
P0033
Turbocharger/Supercharger Bypass Valve Control Circuit