The P0079 trouble code indicates a low voltage issue within the exhaust valve control solenoid circuit of bank 1. This code typically points to issues with the control solenoid responsible for managing the exhaust valve, affecting the engine’s performance.
Exhaust Valve Control Solenoid Circuit Low Bank 1
Code symptoms P0079.
1. Decreased engine performance.
2. Rough idling or stalling.
3. Reduced fuel efficiency.
This code is common in brands such as:: Chevrolet, Renault, Ford, Toyota, Nissan, Mercedes Benz, Honda.
Causes of the code P0079.
1. Faulty exhaust valve control solenoid.
2. Low voltage within the solenoid circuit.
3. Problems with the Engine Control Module (ECM).
Code Solutions P0079.
1. Inspect and replace the exhaust valve control solenoid if it is faulty.
2. Check and repair any low voltage issues in the solenoid circuit.
3. If ECM issues are suspected, consult a qualified technician for diagnosis and potential reprogramming or replacement.