P0079: Exhaust Valve Control Solenoid Circuit Low Bank 1
What Does P0079 Mean?
P0079 is a diagnostic trouble code indicating: Exhaust Valve Control Solenoid Circuit Low Bank 1. This code relates to the fuel and air metering system. It has been reported in NHTSA complaints across 1 different vehicle models.
Real Owner Reports
From NHTSA complaint database — actual owner descriptions.
"The contact owns a 2015 Kia Optima. The contact stated while driving approximately 65 MPH, the check engine warning light illuminated. The contact stated that the vehicle started to lose motive power. The contact pulled off the roadway and heard an abnormal grinding sound coming from underneath the "
— Kia Optima owner, 05/12/2025
Source: NHTSA Complaints Database
Most Reported Vehicles for P0079
Based on NHTSA owner complaint data.
| # | Vehicle | Reports |
|---|---|---|
| 1 | KIA OPTIMA |
Frequently Asked Questions
Can I drive with this code?
Will this code cause my car to fail emissions?
How much does it typically cost to fix?
What To Do Next
Possible Fixes
- 🔧 Have the code scanned with a professional-grade scanner to read freeze frame data
- 🔧 Clean or replace the mass air flow (MAF) sensor; check for vacuum leaks
- 🔧 If DIY repair isn't feasible, get a diagnostic from a trusted mechanic ($50-150)
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1
Find your vehicle above
Click your make and model for real owner reports and common causes specific to your vehicle.
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2
Check for recalls
Go to nhtsa.gov/recalls and enter your VIN. Free repairs if covered.
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Get a professional diagnosis
A code alone doesn't identify the exact failed part. A diagnostic ($50–$150) pinpoints the root cause.