P2075 – Intake Manifold Tuning Valve Position Sensor/Switch Circuit, Bank 1

P2075 Possible Causes

  • Faulty intake manifold tuning valve position sensor/switch
  • Intake manifold tuning valve position sensor/switch harness is open or shorted
  • Poor electrical connection in intake manifold tuning valve position sensor/switch circuit
  • Faulty intake manifold tuning valve (IMTV)
  • Faulty intake manifold runner control (IMRC)
  • Faulty powertrain control module (PCM)

What Does It Mean?

How to Fix Code P2075

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P2075 Possible Symptoms

Illuminated engine light (or service engine soon warning light)

P2075 Meaning

The intake manifold tuning valve (IMTV) is a motorized actuator unit mounted directly on the intake manifold. The IMTV actuator controls a shutter attached to the actuator shaft. There is no monitor input to the powertrain control module (PCM) with this system to indicate the shutter position.

The motorized IMTV unit will not be powered below approximately 2600 RPM or higher on some vehicles. The shutter will be in the closed position preventing the air flow mixture from occurring in the intake manifold. Above approximately 2600 RPM or higher, the motorized unit will be powered. The motorized unit will be controlled by the PCM initially at a 100% duty cycle to move the shutter to the open position, then will drop to approximately 50% to continue holding the shutter open.

The IMTV (Intake Manifold Tuning Valve) system is monitored for failure during continuous self-tests, Key ON Engine OFF (KOEO) or Key ON Engine Running (KOER). The test fails when the signal is above or below an expected calibrated range.

P2076 – Intake Manifold Tuning Valve Position Sensor/Switch Circuit Range/Performance, Bank 1

P2076 Possible Causes

  • Faulty intake manifold tuning valve position sensor/switch
  • Intake manifold tuning valve position sensor/switch harness is open or shorted
  • Poor electrical connection in intake manifold tuning valve position sensor/switch circuit
  • Faulty intake manifold tuning valve (IMTV)
  • Faulty intake manifold runner control (IMRC)
  • Faulty powertrain control module (PCM)

What Does It Mean?

How to Fix Code P2076

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P2076 Possible Symptoms

Check engine light on (or service engine soon warning light)

P2076 Meaning

The intake manifold tuning valve (IMTV) is a motorized actuator unit mounted directly on the intake manifold. The IMTV actuator controls a shutter attached to the actuator shaft. There is no monitor input to the powertrain control module (PCM) with this system to indicate the shutter position.

The motorized IMTV unit will not be powered below approximately 2600 RPM or higher on some vehicles. The shutter will be in the closed position, preventing the air flow mixture from occurring in the intake manifold. Above approximately 2600 RPM or higher, the motorized unit will be powered. The motorized unit will be controlled by the PCM initially at a 100% duty cycle to move the shutter to the open position, then will drop to approximately 50% to continue maintaining the shutter open.

The IMTV (Intake Manifold Tuning Valve) system is monitored for failure during continuous self-tests, Key ON Engine OFF (KOEO), or Key ON Engine Running (KOER). The test fails when the signal is above or below an expected calibrated range.

P2077 – Intake Manifold Runner Control Valve Position Sensor/Switch Circuit, Bank 1

P2077 Possible Causes

  • Faulty intake manifold tuning valve position sensor/switch
  • Intake manifold tuning valve position sensor/switch harness is open or shorted
  • Poor electrical connection in intake manifold tuning valve position sensor/switch circuit
  • Faulty intake manifold tuning valve (IMTV)
  • Faulty intake manifold runner control (IMRC)
  • Faulty powertrain control module (PCM)

What Does It Mean?

How to Fix Code P2077

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P2077 Possible Symptoms

Check engine light on (or service engine soon warning light)

P2077 Meaning

The intake manifold tuning valve (IMTV) is a motorized actuated unit mounted directly on the intake manifold. The IMTV actuator controls a shutter attached to the actuator shaft. There is no monitor input to the powertrain control module (PCM) with this system to indicate shutter position.
The motorized IMTV unit will not be powered below approximately 2600 RPM or higher on some vehicles. The shutter will be in closed position not allowing air flow mixture to occur in the intake manifold. Above approximately 2600 RPM or higher, the motorized unit will be powered. The motorized unit will be commanded by the PCM initially at 100% duty cycle to move the shutter to open position, then will drop to approximately 50% to continue holding the shutter open.
The IMTV (Intake Manifold Tuning Valve) system is monitored for failure during continuous self-tests, Key ON Engine OFF (KOEO) or Key ON Engine Running (KOER). The test fails when the signal is above or below an expected calibrated range.

P2078 – Intake Manifold Tuning Valve Position Sensor/Switch Circuit, Bank 1

P2078 Possible Causes

  • Faulty intake manifold tuning valve position sensor/switch
  • Intake manifold tuning valve position sensor/switch harness is open or shorted
  • Poor electrical connection in intake manifold tuning valve position sensor/switch circuit
  • Faulty intake manifold tuning valve (IMTV)
  • Faulty intake manifold runner control (IMRC)
  • Faulty powertrain control module (PCM)

What Does It Mean?

How to Fix Code P2078

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P2078 Possible Symptoms

Check engine light on (or service engine soon warning light)

P2078 Meaning

The intake manifold tuning valve (IMTV) is a motorized actuator unit mounted directly on the intake manifold. The IMTV actuator controls a shutter attached to the actuator shaft. There is no monitor input to the powertrain control module (PCM) with this system to indicate the shutter position.

The motorized IMTV unit will not be powered below approximately 2600 RPM or higher on some vehicles. The shutter will be in the closed position, preventing the air flow mixture from occurring in the intake manifold. Above approximately 2600 RPM or higher, the motorized unit will be powered. The motorized unit will be controlled by the PCM initially at a 100% duty cycle to move the shutter to the open position, then will drop to approximately 50% to continue maintaining the shutter open.

The IMTV (Intake Manifold Tuning Valve) system is monitored for failure during continuous self-tests, Key ON Engine OFF (KOEO), or Key ON Engine Running (KOER). The test fails when the signal is above or below an expected calibrated range.

P2079 – Intermittent Intake Manifold Runner Control Valve Position Sensor/Switch Circuit

Possible Causes

  • Faulty intake manifold tuning valve position sensor/switch
  • Open or shorted sensor harness
  • Poor electrical connection in sensor circuit
  • Faulty intake manifold tuning valve (IMTV)
  • Faulty intake manifold runner control (IMRC)
  • Faulty powertrain control module (PCM)

Possible Symptoms

  • Illuminated check engine light

Meaning of Code P2079

The intake manifold tuning valve (IMTV) is a motorized unit mounted on the intake manifold. It controls a shutter that regulates airflow into the engine.

At low RPM (below 2600 RPM), the shutter is closed to improve engine efficiency. Above this RPM, it opens under PCM control. A malfunction can prevent this adjustment, leading to performance loss.

Diagnosis and Repair

  1. Visual Inspection: Check electrical harness and connectors for damage.
  2. IMTV Sensor Test: Verify voltage and continuity using a multimeter.
  3. IMTV Valve Inspection: Ensure mechanical operation without obstruction.
  4. PCM Check: If all other components are functional, the issue may be with the engine control module.

Conclusion

Codes P2009, P092C, and P2079 indicate critical malfunctions that can affect engine and transmission performance. Thorough inspection and accurate diagnosis will resolve these issues and ensure proper vehicle operation.

P207A – Intake Manifold Tuning Valve Position Sensor/Switch Circuit, Bank 2

P207A Possible Causes

  • Faulty intake manifold tuning valve position sensor/switch
  • Intake manifold tuning valve position sensor/switch harness is open or shorted
  • Poor electrical connection in the intake manifold tuning valve position sensor/switch circuit
  • Faulty intake manifold tuning valve (IMTV)
  • Faulty intake manifold runner control (IMRC)
  • Faulty powertrain control module (PCM)

What Does It Mean?

How to Fix Code P207A

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P207A Possible Symptoms

Check engine light on (or service engine soon warning light)

P207A Meaning

The intake manifold tuning valve (IMTV) is a motorized actuator unit mounted directly on the intake manifold. The IMTV actuator controls a shutter attached to the actuator shaft. There is no monitor input to the powertrain control module (PCM) with this system to indicate the shutter position.

The motorized IMTV unit will not be powered below approximately 2600 RPM or higher on some vehicles. The shutter will be in the closed position, preventing the air flow mixture from occurring in the intake manifold. Above approximately 2600 RPM or higher, the motorized unit will be powered. The motorized unit will be controlled by the PCM initially at a 100% duty cycle to move the shutter to the open position, then will drop to approximately 50% to continue maintaining the shutter open.

The IMTV (Intake Manifold Tuning Valve) system is monitored for failure during continuous self-tests, Key ON Engine OFF (KOEO), or Key ON Engine Running (KOER). The test fails when the signal is above or below an expected calibrated range.

P207B – Sensor Circuit Range / Performance

P207B – Intake Manifold Tuning Valve Position Sensor/Switch Circuit Range/Performance, Bank 2

P207B Possible Causes

  • Faulty Intake Manifold Tuning Valve Position Sensor/Switch
  • Intake Manifold Tuning Valve Position Sensor/Switch harness is open or shorted
  • Intake Manifold Tuning Valve Position Sensor/Switch circuit poor electrical connection
  • Faulty Intake Manifold Tuning Valve (IMTV)
  • Faulty Intake Manifold Runner Control (IMRC)
  • Faulty Powertrain Control Module (PCM)

What Does It Mean?

How to Fix Code P207B

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P207B Possible Symptoms

Engine Light On (or Service Engine Soon Warning Light)

P207B Meaning

The Intake Manifold Tuning Valve (IMTV) is a motorized actuated unit mounted directly on the intake manifold. The IMTV actuator controls a shutter attached to the actuator shaft. There is no monitor input to the Powertrain Control Module (PCM) with this system to indicate the shutter position.

The motorized IMTV unit will not be powered below approximately 2600 RPM or higher on some vehicles. The shutter will be in the closed position not allowing the air flow mixture to occur in the intake manifold. Above approximately 2600 RPM or higher, the motorized unit will be powered up. The motorized unit will be commanded by the PCM initially at a 100% duty cycle to move the shutter to the open position, then will drop to approximately 50% to continue to hold the shutter open.

The IMTV (Intake Manifold Tuning Valve) system is monitored for failure during continuous monitors self-test, Key ON Engine OFF (KOEO) or Key ON Engine Running (KOER). The test fails when the signal is above or below an expected calibrated range.

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P207C – Intake Manifold Tuning Valve Position Sensor/Switch Circuit, Bank 2

P207C – Intake Manifold Tuning Valve Position Sensor/Switch Circuit, Bank 2

P207C Possible Causes

  • Faulty Intake Manifold Tuning Valve Position Sensor/Switch
  • Intake Manifold Tuning Valve Position Sensor/Switch harness is open or shorted
  • Intake Manifold Tuning Valve Position Sensor/Switch circuit poor electrical connection
  • Faulty Intake Manifold Tuning Valve (IMTV)
  • Faulty Intake Manifold Runner Control (IMRC)
  • Faulty Powertrain Control Module (PCM)

What Does It Mean?

How to Fix Code P207C

Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.

P207C Possible Symptoms

Engine Light On (or Service Engine Soon Warning Light)

P207C Meaning

The Intake Manifold Tuning Valve (IMTV) is a motorized actuated unit mounted directly on the intake manifold. The IMTV actuator controls a shutter attached to the actuator shaft. There is no monitor input to the Powertrain Control Module (PCM) with this system to indicate the shutter position.

The motorized IMTV unit will not be powered below approximately 2600 RPM or higher on some vehicles. The shutter will be in the closed position not allowing the air flow mixture to occur in the intake manifold. Above approximately 2600 RPM or higher, the motorized unit will be powered up. The motorized unit will be commanded by the PCM initially at a 100% duty cycle to move the shutter to the open position, then will drop to approximately 50% to continue holding the shutter open.

The IMTV (Intake Manifold Tuning Valve) system is monitored for failure during continuous self-tests, Key ON Engine OFF (KOEO) or Key ON Engine Running (KOER). The test fails when the signal is above or below an expected calibrated range.

P207D – Intake Manifold Tuning Valve Position Sensor/Switch Circuit, Bank 2

P207D Possible Causes

  • Faulty intake manifold tuning valve position sensor/switch
  • Intake manifold tuning valve position sensor/switch harness is open or shorted
  • Poor electrical connection in the intake manifold tuning valve position sensor/switch circuit
  • Faulty intake manifold tuning valve (IMTV)
  • Faulty intake manifold runner control (IMRC)
  • Faulty powertrain control module (PCM)

What Does It Mean?

How to Fix Code P207D

Check the “possible causes” listed above. Visually inspect the related wiring harness and connectors. Look for damaged components and check for broken, bent, pushed out, or corroded connector pins.

P207D Possible Symptoms

Check engine light on (or service engine soon warning light)

P207D Meaning

The intake manifold tuning valve (IMTV) is a motorized actuator unit mounted directly on the intake manifold. The IMTV actuator controls a shutter attached to the actuator shaft. There is no monitor input to the powertrain control module (PCM) with this system to indicate the shutter position.

The motorized IMTV unit will not be powered below approximately 2600 RPM or higher on some vehicles. The shutter will be in the closed position, preventing the air flow mixture from occurring in the intake manifold. Above approximately 2600 RPM or higher, the motorized unit will be powered. The motorized unit will be controlled by the PCM initially at a 100% duty cycle to move the shutter to the open position, then will drop to approximately 50% to continue maintaining the shutter open.

The IMTV (Intake Manifold Tuning Valve) system is monitored for failure during continuous self-tests, Key ON Engine OFF (KOEO), or Key ON Engine Running (KOER). The test fails when the signal is above or below an expected calibrated range.