Error code

OBD2 P0086

OBD2P0086
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Exhaust Valve Control Solenoid Circuit High.

Severity

moderateCan drive, but performance issues may occur.

Summary

P0086 indicates an issue with the exhaust valve control solenoid circuit being high in voltage on bank 2 of the engine.

Symptoms

  • Check Engine Light (CEL) illuminated
  • Rough idle
  • Poor performance
  • Reduced fuel economy

Common Causes

  • Wiring short to positive, exhaust valve control solenoid circuit
  • Connector and harness damage or corrosion
  • Open circuit in the solenoid coil

Diagnosis

  1. Check connector and harness for damage or corrosion
  2. Measure voltage at the solenoid valve with engine running
  3. Inspect wire harness between ECM and VVT solenoid valve
  4. Test resistance across solenoid valve pins

Fixes

  • Repair or replace damaged wiring, connectors, or the exhaust valve control solenoid

FAQ

What does P0086 mean?

P0086 indicates a high voltage issue in the exhaust valve control solenoid circuit on bank 2 of the engine.

How do I diagnose P0086?

Use a multimeter to check for proper voltage and resistance at the VVT solenoid valve, inspect wiring harnesses, and connectors for damage or corrosion.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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