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P0079moderate severityPowertrain

Exhaust Valve Control Solenoid Circuit Low (Bank 1)

on 2015 Kia Forte 1.8L I4 · FWD

What this code means

The exhaust valve control solenoid circuit on bank 1 shows low voltage. This can cause improper exhaust valve timing.

Symptoms

  • Rough idle
  • Loss of power
  • Check engine light on

Common causes

  • Short to ground in circuit
  • Faulty exhaust valve solenoid
  • Damaged wiring
  • Failed PCM driver

Diagnostic steps

  1. Scan for related codes
  2. Inspect wiring for short to ground
  3. Measure circuit voltage
  4. Test solenoid resistance

Other Powertrain codes on this vehicle

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