OBD-II trouble code
P2014: Intake Manifold Runner Position Sensor / Switch Circuit (Bank 1)
A fault in the device that reports where the intake runner flaps are, rather than in the device that moves them. The flaps may be working perfectly — what the module has lost is its ability to prove it.
Quick facts
- System
- Powertrain
- Category
- Air Intake / Manifold Control
- Severity
- Medium severity
- Drivable
- Usually safe to drive short-term
- Repair cost range
- $90 – $900
- DIY difficulty
- Intermediate DIY
What does P2014 mean?
Every code before this one in the runner control block concerns the actuator: the thing that swings the flaps, or the circuit that drives it. P2014 concerns the reporter. It is the first code in the family about the feedback device the module relies on to know what the flaps are actually doing, and the distinction changes both the diagnosis and the way you should read anything else stored alongside it.
That matters more than it sounds, because of how the module reaches its mechanical verdicts. When it decides the runners are stuck open or stuck closed, it does not observe the flaps. It commands a movement and then looks at this sensor for confirmation. Take the sensor away and the confirmation never arrives, so the module concludes the movement did not happen — and stores a stuck code that describes nothing real. P2014 is therefore a parent code, and P2004 or P2006 sitting next to it may be entirely fictional. Repair the feedback circuit, clear everything, and let the module re-run its own test before you believe a word it said about the mechanics.
The second thing to establish is what kind of device this engine actually has, because the SAE title names two possibilities and they behave nothing alike.
A position sensor is an analogue device, normally three wires: a five-volt reference from the module, a ground, and a signal that moves continuously through the range as the shaft rotates. It reports where the flaps are at every instant, which means live data gives you a proper picture — you can watch commanded and actual position track each other through a movement and see exactly where they diverge.
A position switch is a two-wire device that changes state at one end of travel and says nothing at all in between. It cannot tell you where the flaps are; it can only tell you that they have arrived. On a switch system, live data has one bit of information in it, testing means confirming the switch changes state when the shaft is moved by hand, and there is no such thing as watching the movement.
Establishing which one you have takes a minute with a wiring diagram and saves an hour of expecting data that the system was never designed to produce.
One piece of practical advice about parts. On a large share of designs the position sensor is not sold separately — it is built into the actuator housing, or mounted to the manifold and indexed to the flap shaft in a way that does not come apart. On several engine families the whole intake manifold is the service part. Before you price this repair, find out whether the sensor exists as its own component on your engine, because that single fact separates a modest job from a major one.
Common causes
- Open, shorted or chafed wire in the position sensor circuit
- Corroded or damaged terminals in the sensor connector
- Failed position sensor element or worn resistive track
- Failed position switch that no longer changes state
- Loss of the five-volt reference supplied to the sensor
- Sensor lever or coupling detached from the runner shaft
- Sensor integral to an actuator or manifold assembly that has failed internally
Symptoms
- Check engine light on
- Stuck-open or stuck-closed runner codes stored alongside that may not reflect a real mechanical fault
- Runner position missing, frozen or obviously wrong in live data
- Loss of low-speed torque if the module abandons runner control as a result
- Occasional rough idle on engines that use runner position in their idle strategy
- Frequently no driveability complaint at all
Diagnostic steps
- 1.Determine from the wiring diagram whether this engine uses an analogue position sensor or a simple position switch. What you should expect to see in live data, and how you test the device, differ completely between the two.
- 2.Treat any stuck-runner code stored with this one as unconfirmed. The module reaches those verdicts using this sensor, so a failed sensor manufactures them. Fix the feedback circuit first and let the module re-test.
- 3.Inspect the sensor connector for corrosion, spread terminals and a pin that has backed out, and confirm the connector is fully latched.
- 4.On a three-wire sensor, check for the five-volt reference and a clean ground at the connector with the key on. A missing reference is a circuit fault upstream of the sensor, not a sensor fault.
- 5.Watch the signal in live data while an assistant cycles the runners with a scan tool, or move the shaft by hand with the linkage disconnected. A signal that never changes, or that jumps and drops out, identifies the device.
- 6.On a switch system, check continuity across the switch with the shaft at each end of travel. A switch that never changes state is the fault.
- 7.Check that the sensor lever or coupling is still engaged with the runner shaft. A detached coupling gives a healthy sensor reporting a shaft that never moves.
- 8.Before ordering anything, confirm whether the sensor is available separately on this engine or only as part of the actuator or manifold assembly.
Repair cost
$90 – $900
A wiring or connector repair is $90 to $300. A separately available position sensor is roughly $70 to $220 in parts with under an hour of labour. Where the sensor is integral to the actuator, expect $250 to $650 installed. On engines where the runner assembly is only sold as a complete intake manifold, the job runs to $900 or beyond — which is why confirming part availability comes before confirming the diagnosis is worth acting on.
Estimate your repair
Run the numbers for your vehicle
Open the Repair Cost Estimator with intake manifold runner control actuator replacement preselected. Adjust labor rate and vehicle category to fit your situation.
DIY vs shop
This is an intermediate DIY job. It usually involves diagnostic steps, specialty parts, and some careful work in tight spaces. If you have the tools and a service manual or trustworthy video for your specific vehicle, it is achievable in a weekend. Otherwise, a competent independent shop will be faster.