P0660 to P0665: intake manifold tuning valve circuit
The control circuit of the valve that changes the length or path of the intake manifold, on bank 1 or bank 2, is open, low or high.
SeverityLowLittle risk to the car, but the fault stays until it is repaired.
Can you keep driving?Safe to drive, book a checkWhat does P0660 mean?
Many engines change the path the air takes through the intake manifold: a long path helps torque at low speed and a short one helps power at high speed. A valve or flaps, moved by a solenoid, a vacuum actuator or a small motor, switch between them. If the computer cannot drive the valve, it stays in one position, so the engine loses a little torque or a little top-end power, but runs normally otherwise.
What causes P0660?
- A failed tuning valve solenoid or actuator motor
- A split vacuum hose to the actuator, on vacuum-operated valves
- A damaged wire or connector at the valve
- Flaps stuck with carbon, or a broken linkage
What to check first for P0660
- Inspect the valve's connector and wiring
- Check the vacuum hose to the actuator, where there is one
- Have the valve commanded with a scan tool and watch whether the linkage moves
- Ask whether the engine has known issues with intake flaps breaking
Can you drive with P0660?
You can drive safely. Expect slightly less pulling power; have it checked at the next service, and sooner if you hear a rattle from the intake, because on some engines a broken flap can fall into the engine.
In states with an OBD-II emissions inspection, a car with the check engine light on fails the test until the fault is fixed.
Codes on this page
- P0660Intake Manifold Tuning Valve Control Circuit/OpenBank 1
- P0661Intake Manifold Tuning Valve Control Circuit LowBank 1
- P0662Intake Manifold Tuning Valve Control Circuit HighBank 1
- P0663Intake Manifold Tuning Valve Control Circuit/OpenBank 2
- P0664Intake Manifold Tuning Valve Control Circuit LowBank 2
- P0665Intake Manifold Tuning Valve Control Circuit HighBank 2
Related codes
Checked on · Rafael Soares
These are the generic meanings every manufacturer shares. Each brand adds its own detail, so your car's handbook, its service information and a qualified mechanic have the last word. OdoKeep has no connection with any manufacturer, and the app does not read codes from the car.
