P0471moderate severityPowertrain
Exhaust Pressure Sensor Range/Performance
on 2008 Dodge Viper 8.4L V10 · RWD
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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P0002
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P0004
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P0005
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P0006
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P0007
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P0008
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P0009
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P0010
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