Intake Manifold Runner Position Sensor/Switch Circuit Bank 1
Diagnostic trouble code P2014 indicates that the powertrain control module (PCM) has detected a malfunction in the electrical circuit of the intake manifold runner position sensor or switch for Bank 1. The PCM sets this code when the voltage signal from the sensor does not match the expected values based on current engine operating conditions.
While the vehicle will typically remain drivable, ignoring this code can lead to reduced engine performance, poor fuel economy, and potential long-term issues with emissions components.
Common symptoms
- Illuminated Check Engine Light
- Rough engine idle
- Hesitation or stumbling upon acceleration
- Decreased fuel efficiency
- Loss of low-end engine torque
Likely causes
- Faulty intake manifold runner position sensor/switch
- Damaged, corroded, or loose wiring and connectors in the sensor circuit
- Carbon buildup or physical binding in the intake manifold runner flaps
- Vacuum leak affecting the intake manifold runner control actuator
- Faulty intake manifold runner control actuator
- Failed Powertrain Control Module (PCM) (rare)
What to check before replacing parts
Visually inspect the wiring and connectors for the intake manifold runner position sensor on Bank 1.
Look for: Look for frayed wires, melted insulation, corrosion on pins, or loose connections that could cause an open or short circuit.
Check the intake manifold runner linkage and flaps for physical binding.
Look for: Disconnect the actuator linkage and manually move the runner flaps; they should move freely without excessive resistance or sticking caused by carbon buildup.
Test the intake manifold runner position sensor using a digital multimeter.
Look for: Check for proper reference voltage (usually 5V) and a good ground at the sensor connector. Then, measure the signal wire voltage while manually moving the flaps to ensure the voltage changes smoothly without dropouts.
Inspect the vacuum lines and the intake manifold runner control actuator (if vacuum operated).
Look for: Check for cracked or disconnected vacuum lines, and apply vacuum to the actuator using a hand pump to verify it holds vacuum and moves the linkage properly.
Use a scan tool to monitor the intake manifold runner position sensor data PID.
Look for: Command the actuator to open and close (if bi-directional controls are available) and observe the sensor voltage or percentage on the scan tool to see if it matches the commanded state.
This page explains the generic P2014 definition and is general reference information, not a diagnosis for your specific vehicle. Actual causes, severity, and repairs vary by make, model, engine, and mileage — always confirm with a scan tool and a qualified technician before replacing parts.
Gear guide: Best OBD2 ScannersRead this code yourself next time — from $20 Bluetooth dongles to bidirectional scan tools.Rather have a pro handle it? Find a vetted local mechanic.