The P0077 trouble code indicates a high voltage issue within the intake valve control solenoid circuit of bank 1. This code typically points to issues with the control solenoid responsible for managing the intake valve, affecting the engine’s performance.
Intake Valve Control Solenoid Circuit High Bank 1
Code symptoms P0077.
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 P0077.
1. Faulty intake valve control solenoid.
2. High voltage within the solenoid circuit.
3. Problems with the Engine Control Module (ECM).
Code Solutions P0077.
1. Inspect and replace the intake valve control solenoid if it is faulty.
2. Check and repair any high voltage issues in the solenoid circuit.
3. If ECM issues are suspected, consult a qualified technician for diagnosis and potential reprogramming or replacement.