P2415O2 Sensor Exhaust Sample Error (Bank 2 Sensor 1)
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Needs a drive cycle to confirm a fix
- How the car detects it
- P2415 indicates that the upstream air-fuel sensor on bank 2 is not reading a representative exhaust sample - typically because outside air is drawn in through a leak near the sensor or the sensor is not seated correctly, so the reading is implausibly lean. VW's 2014 specification books for the Passat, CC and Touareg evaluate the sensor signal voltage against two bands, 3.70-4.81 V and a lower band of 2.51-3.00 V or 3.0-3.70 V, the band being switched with the gain factor used for the sensor characteristic. P2414 is the identical check on bank 1. CARB requires fuel-control sensors to be monitored for every parameter that affects emissions. Expect a warning light and possibly rough running and higher consumption.
- What you may notice
- Check engine light
- Ticking exhaust noise when a leak is present
- Higher fuel consumption or uneven running
- Likely causes
- LikelyExhaust leak ahead of or near the sensor (manifold, gasket, flex pipe)
- PossibleSensor loose or installed incorrectly
- PossibleAged or contaminated wide-band sensor
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €60 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.