P0470moderate severityPowertrain
Exhaust Pressure Sensor Malfunction
on 2023 Chevrolet Bolt EUV 65 kWh Single Motor FWD · FWD
What this code means
The exhaust back pressure sensor is reading outside its expected range or has failed. This can affect EGR and turbo boost control on diesel and some gas engines.
Symptoms
- Check engine light on
- Reduced engine power
- Poor fuel economy
Common causes
- Faulty exhaust pressure sensor
- Clogged or damaged sensor pressure tube
- Wiring or connector corrosion
- Failed PCM input circuit
Diagnostic steps
- Scan and confirm code with freeze frame data
- Inspect sensor and pressure tube for clogs or leaks
- Check wiring and connector for damage
- Compare sensor reading to known good values, replace if faulty
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Other Powertrain codes on this vehicle
P0005
Fuel Shutoff Valve A Control Circuit/Open
P0006
Fuel Shutoff Valve A Control Circuit Low
P0007
Fuel Shutoff Valve A Control Circuit High
P0008
Engine Position System Performance - Bank 1
P0009
Engine Position System Performance - Bank 2
P0026
Intake Valve Control Solenoid Circuit Range/Performance Bank 1
P0027
Exhaust Valve Control Solenoid Circuit Range/Performance Bank 1
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