P2015 Code: Intake Runner Position Sensor Range/Performance Bank 1
The sensor on the intake manifold flaps reports a position that doesn't match what the ECU commanded.
At a glance
Severity: Low
- Meaning
- Intake Runner Position Sensor Range/Performance Bank 1
- System
- Fuel & Air Metering · Powertrain
- Safe to drive?
- Yes, short term
- Typical repair cost
- $40–$1,500
- DIY difficulty
- Moderate
Many modern engines have flaps inside the intake manifold that either change the effective runner length or create tumble and swirl for cleaner combustion at low load. A position sensor at one end of the flap shaft tells the ECU what angle the flaps actually reached. P2015 sets when that feedback is implausible: the flaps don't reach the commanded end stop, move too little, or the signal sits outside the window the ECU expects. On VW and Audi 2.0 TFSI engines the textbook cause is a worn flap shaft or a plastic actuator lever that has broken or popped off its ball socket, so the sensor no longer follows the flaps; on 2.0 TDI engines the electric flap motor and carbon-bound flaps are the usual suspects. The sensor itself is the least common culprit.
Can I keep driving? Safe to drive in the short term; most drivers only notice slightly weaker pull at low rpm or nothing at all. Get it fixed before your next emissions test, and don't ignore a worn manifold that also causes a vacuum leak, because that can bring lean codes with it.
How to read P2015
- P Powertrain
- 2 Generic (SAE)
- 0 Fuel/air & emissions (aux.)
- 15 Specific fault
Symptoms
- Check engine light on, often with no change in how the car drives
- Slightly weaker response when pulling away or accelerating below about 3,000 rpm
- Uneven idle on a cold engine on some models
- Rattle or ticking from the intake manifold area at idle, caused by a loose lever or worn shaft
- Code returns within a drive or two after being cleared
Possible causes
Ranked by how often each cause is behind this code (editorial estimate).
- Plastic actuator lever broken, worn at the ball joint or popped off the flap shaft
- Flap shaft worn at its bushings or bound up with carbon (common on diesels with EGR)
- Actuator fault: leaking vacuum diaphragm or bad control solenoid (vacuum type) or failed electric flap motor
- Position sensor faulty or loose on its mount so it no longer reads the shaft correctly
- Wiring or connector problem: corrosion, oil wicking into the plug, damaged 5 V reference
- New manifold or actuator fitted without running the flap adaptation
Diagnosis step by step
Compare commanded and actual flap position
With a scan tool that shows manufacturer data, watch the runner flap command and the reported position while you snap the throttle or use the actuator test. A position reading that never changes while the command switches points to a mechanical break; a reading that moves but stops short points to binding or a weak actuator.
Tools: OBD-II scanner
Watch the linkage move
Locate the actuator and the lever on the end of the flap shaft; on 2.0 TFSI engines it sits low on the front of the manifold, on many diesels the electric motor bolts to one end. With the engine idling or the flaps commanded, the lever should swing crisply to its stop. If the actuator rod moves but the shaft doesn't, the lever or its ball joint has failed.
Tools: Flashlight
Check shaft play and free movement
Engine off, disconnect the actuator rod and move the lever by hand. It should travel smoothly from stop to stop with no gritty spots. Noticeable side play at the sensor end means the shaft or its bushings are worn, which on some manifolds can only be fixed by replacing the manifold.
Tools: Pliers, Flashlight
Test the actuator supply
On vacuum actuators, tee a vacuum gauge into the line: with the flaps commanded the actuator should see close to full engine vacuum, typically around 18 to 20 inHg at idle, and hold it when the engine is shut off. On electric flap motors, check the motor's power and ground and listen for it running during the actuator test.
Tools: Vacuum gauge, Multimeter
Check the sensor signal
Back-probe the sensor with the key on: expect about 5 V on the reference wire and a clean ground. Move the shaft by hand while watching the signal voltage; it should change smoothly between its end values without dropouts or jumps.
Tools: Multimeter
Adapt and verify
After any repair, run the manufacturer's flap adaptation or basic setting if the scan tool offers one, clear the code and drive through several cold starts and light-throttle accelerations, when the flap test typically runs.
Tools: OBD-II scanner
Where the parts are
- 1Gas cap
- 2Charcoal canister
- 3Purge valve
- 4Vent valve
- 5Fuel pump
- 6Intake manifold
Repair options & costs
| Repair | DIY? | Estimated cost |
|---|---|---|
| Re-secure or replace the actuator lever with a repair kit | Yes | $40–$180 |
| Replace runner position sensor | Yes | $120–$300 |
| Replace vacuum actuator or control solenoid | Yes | $120–$350 |
| Replace electric flap motor (diesel) | No | $300–$700 |
| Replace intake manifold with integrated flaps | No | $700–$1,500 |
Rough US estimates for parts and labor; shop rates vary by region. Not a quote.
Notes by brand
Volkswagen
On the first- and second-generation EA888 2.0 TFSI (Mk6 GTI, CC, Passat, Tiguan and the B8 Audi A4, A5 and Q5), P2015 is one of the best-known codes. The plastic lever that links the vacuum actuator to the flap shaft wears or breaks, and a dealer repair bracket exists to hold it in place. If the shaft itself has play at the sensor end, the bracket won't last and the manifold has to be replaced.
Field data
| Volkswagen | 12 | ||
|---|---|---|---|
| Audi | 2 | Q3 |
Source: NHTSA Complaints API (US government open data), analyzed by DTC mention.
Emissions / smog test impact
Will fail
Any state that runs an OBD plug-in test fails the vehicle while the check engine light is on for P2015. Once repaired and cleared, the car usually needs only a normal drive cycle to reset readiness monitors.
Frequently asked questions
Is the repair bracket enough, or do I need a new intake manifold?
If the flaps move freely and the shaft has no side play, a new lever or bracket is a cheap and lasting fix. If the shaft is visibly loose at the sensor end, the bracket only buys time and the manifold is the real repair.
Can P2015 damage my engine?
Not directly. The engine just loses a bit of low-speed efficiency and torque. The risk is indirect: a worn manifold can leak vacuum, and on diesels a flap stuck with carbon is often a sign the EGR system is loading the intake with soot.
Why does the code come back right after I clear it?
The ECU checks the flaps every time it switches them, which happens shortly after start-up and during light acceleration. A mechanical fault is detected again within minutes, so clearing the code without fixing the linkage won't get you through an emissions test.
Is P2015 the same as a stuck flap code?
Related, but not the same. Stuck-open or stuck-closed codes such as P2004 describe the flap position itself, while P2015 says the position signal doesn't make sense. Both often appear together when the lever breaks.
Sources
- SAE J2012 – Diagnostic Trouble Code Definitions
- ISO 15031-6 – Road vehicles, diagnostic trouble code definitions (EOBD)
- Manufacturer public service information (cross-checked)
- NHTSA Complaints API
- Methodology: How We Build Code Pages · Data Sources We Use · Editorial Policy