P2077 BUICK code

P2077 is a diagnostic trouble code (DTC) for “Intake Manifold Tuning (IMT) Valve Position Sensor/Switch Circuit Low“. This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation.

How do I fix code P2078?

What repairs can fix the P2078 code?

  1. Replacing the IMT valve (the sensor that this code indicates is the problem is most often part of the IMT valve assembly and will be replaced as a single unit)
  2. Repairing wiring to the control circuit.
  3. Repairing vacuum lines that may be plugged or leaking.

What is intake manifold tuning valve?

The intake manifold tuning valve opens and closes the flap in your intake manifold. It regulates the pressure between intake plenums and is also responsible for redirecting air to the right intake runners, aiding in driveability and engine performance.

What is an IMT valve?

The IMT valve helps increase engine torque by changing the length of the runner in the intake manifold to match the conditions in which the vehicle is being driven. When the tuning valve gets stuck open, it is possible that the engine may not perform optimally.

What is code P0660?

The P0660 code indicates a problem with engine bank 1’s intake manifold tuning valve control circuit.

How much does it cost to replace a intake manifold runner control?

A new intake manifold runner valve can cost anywhere between $50 and $200, depending on factors like its brand and your vehicle’s specifications. Labor costs for replacing a damaged intake manifold runner valve typically range from $300 to $400.

What can a bad intake manifold runner control cause?

If the intake manifold runner control has an issue it can cause the vehicle to experience engine performance issues such as misfires, a decrease in power and acceleration, a decrease in fuel efficiency, and even stalling.

How much does it cost to fix intake manifold?

The average intake manifold replacement cost is between $300 and $1100, depending on the car model and labor costs. An intake manifold costs $200 to $600 and the labor costs $100 to $500. This cost differs a lot depending on the car engine and car model you have.

Where is the intake manifold runner control located?

Above and behind the serpentine belt, you’ll find a black box with linkages coming out of it. The box contains an electric motor that controls two doors or flaps in the side of the intake manifold [Ford calls it the Intake Manifold Runner Control].

What is intake manifold runner control stuck open?

Essentially, this is the part that controls how fuel gets pumped into the part of the engine that combusts fuel to produce power. This system is controlled by the powertrain control module, which means if the actuator is stuck open, it might be a problem with either the intake manifold or the powertrain control module.