P0080 — Exhaust Valve Control Solenoid Circuit High Bank 1

P0080: Exhaust Valve Control Solenoid Circuit High Bank 1 — what it means, the affected system and what to check before replacing parts.

Meaning, symptoms, causes and checks

Exhaust Valve Control Solenoid Circuit High Bank 1. Basic catalogue definition; diagnostic details have not yet been reviewed.

Affected system: Powertrain

Symptoms

  • Check Engine light illumination
  • Engine misfires
  • Reduced engine power
  • Increased fuel consumption
  • Rough idle
  • Poor acceleration

Possible causes

  • Faulty exhaust valve control solenoid
  • Damaged wiring in the solenoid control circuit
  • Corroded or loose electrical connector pins
  • Short circuit to voltage in the wiring harness
  • Failed Engine Control Module (ECU)

What to check

  • Inspect the electrical connector for corrosion or bent pins
  • Check the wiring harness for signs of chafing or shorts
  • Measure the resistance of the solenoid using a multimeter
  • Verify circuit continuity between the solenoid and the ECU
  • Test the solenoid operation using a scan tool for actuation

Also written as: P0080-00, P008000, PO080 (some scan tools add the fault-type byte, e.g. -00).