P0086moderate severityPowertrain
Exhaust Valve Control Solenoid Circuit High (Bank 2)
on 2020 BMW i3 Range Extender · RWD
What this code means
The exhaust valve control solenoid circuit on bank 2 shows high voltage. This can disrupt variable exhaust valve timing.
Symptoms
- Rough running
- Reduced performance
- Check engine light on
Common causes
- Short to voltage in circuit
- Faulty exhaust valve solenoid
- Damaged connector
- Failed PCM driver
Diagnostic steps
- Scan for stored codes
- Inspect wiring for short to power
- Measure circuit voltage
- Test solenoid function
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