P0665low severityPowertrain
Intake Manifold Tuning Valve Control Circuit High Bank 2
on 2017 Audi S5 3.0L Supercharged V6 · AWD
What this code means
The PCM detected a high voltage condition in the intake manifold tuning valve control circuit on bank 2. This valve controls intake runner tuning.
Symptoms
- Check engine light on
- Reduced power
- Poor performance
Common causes
- Short to voltage in wiring
- Faulty tuning valve solenoid
- Corroded connector
- Faulty PCM
Diagnostic steps
- Scan for codes
- Inspect wiring for shorts to power
- Test solenoid resistance
- Check control circuit voltage
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