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2015 KIA FORTE
1.8L I4•FWD•AUTOMATIC•gas•G4NB
1 active safety recall on this vehicle — view recalls🏆Sponsored by Simon-Olivier Ricci
Repairs401Labor494Torque3387Fluid7DTC1780Battery1Maintenance0Recalls1
P0078moderate severityPowertrain

Exhaust Valve Control Solenoid Circuit (Bank 1)

on 2015 Kia Forte 1.8L I4 · FWD

What this code means

A fault is detected in the exhaust valve control solenoid circuit on bank 1. This solenoid controls variable valve timing on the exhaust side.

Symptoms

  • Rough idle
  • Reduced power
  • Check engine light on

Common causes

  • Faulty exhaust valve control solenoid
  • Wiring open or short
  • Low or dirty oil
  • Failed PCM driver

Diagnostic steps

  1. Scan for VVT codes
  2. Check oil level and quality
  3. Test solenoid resistance
  4. Inspect wiring and connector
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