P2077 Ford Code - Intake Manifold Tuning Valve Position Sensor/Switch Circuit Low Bank 1
Quick Answer
The Intake Manifold Tuning Valve (IMTV) is a motorized actuated unit mounted directly to the intake manifold. Common causes include 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. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P2077 Ford indicates Intake Manifold Tuning Valve Position Sensor/Switch Circuit Low Bank 1.
- Common causes
- Common causes include 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.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P2077 Ford Description
The motorized IMTV unit will not be energized below approximately 2600 rpm or higher on some vehicles. The shutter will be in the closed position not allowing airflow blend to occur in the intake manifold. Above approximately 2600 rpm or higher, the motorized unit will be energized. The motorized unit will be commanded on by the PCM initially at a 100 percent duty cycle to move the shutter to the open position and then falling to approximately 50 percent to continue to hold the shutter open.
The Intake Manifold Tuning Valve (IMTV) system is monitored for failure during continuous, Key ON Engine OFF (KOEO), or Key ON Engine Running (KOER) self-tests. The test fails when the signal is more or less than an expected calibrated range.
What are the Possible Causes of the DTC P2077 Ford?
- 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)
How to Fix the DTC P2077 Ford?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P2077 Ford code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Frequently Asked Questions about P2077 Ford Code
No Frequently Asked Questions about P2077 Ford Code found.
Discuss the causes and fixes for P2077 Ford OBDII Code
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We have a 2006 ford escape v6 with P2077 code. We found a map sensor but unable to find a manifold tuning valve position sensor. Is it possible that this car doesn't have a tuning valve positions sensor and only a map sensor? If it does have the tuning valve position sensor where would it be on the engine? Thanks Tony
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On the 2006 Escape V6 (3.0L Duratec), you're looking for the Intake Manifold Runner Control (IMRC) system, not the MAP sensor. The MAP sensor and the intake manifold tuning valve position sensor are two different components.
Depending on the engine calibration, the position sensor is mounted as part of or very close to the IMRC actuator on the upper intake manifold. It isn't always serviced as a separate sensor. Before replacing anything, check that the IMRC linkage moves freely, the actuator isn't sticking, and the electrical connector is clean and fully seated. A broken linkage or a sticking intake runner is just as likely to set P2077 as a bad sensor.
If you can confirm whether your Escape has the 3.0L Duratec with a cable-operated or electronic IMRC actuator, I can help point you to the exact location of the sensor and actuator assembly.
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