P0079
MODERATEExhaust Valve Control Solenoid Circuit Low (Bank 1)
What this code means
Exhaust Valve Control Solenoid Circuit Low (Bank 1). This family covers the measurement of incoming air and injected fuel, together with the emission devices attached to them. A fault here distorts the mixture the engine burns, which costs fuel and raises emissions.
How to read this code
- PPowertrain
- 0standardised code
- 0Fuel and air metering, auxiliary emission controls
- 79P0079
The letter P names the system: Powertrain. The digit 0 that follows marks a standardised code, shared by all manufacturers code. The next digit, 0, locates the fault: fuel and air metering, auxiliary emission controls.
What to do
Have it checked this week. The car remains usable, but the fault will not clear itself and will fail the roadworthiness test.
Clearing a code switches the light off but repairs nothing: if the fault remains, the code comes back.
Nearby codes
- P0070Ambient Air Temperature Sensor Circuit
- P0071Ambient Air Temperature Sensor Range/Performance
- P0072Ambient Air Temperature Sensor Circuit Low
- P0073Ambient Air Temperature Sensor Circuit High
- P0074Ambient Air Temperature Sensor Circuit Intermittent
- P0075Intake Valve Control Solenoid Circuit (Bank 1)
- P0076Intake Valve Control Solenoid Circuit Low (Bank 1)
- P0077Intake Valve Control Solenoid Circuit High (Bank 1)