P2582Turbocharger/Supercharger Speed Sensor A Circuit Intermittent
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2582 points to a speed sensor A signal that cuts out or jumps for short moments while being fine in between, so the fault may be gone by the time the vehicle reaches the workshop. Loose terminals, a cracked wire that opens under vibration or heat, and a sensor failing internally when hot are the usual suspects. No manufacturer publishes P2582 under its own code; PACCAR's bulletin E209 on MX-11/MX-13 engines shows how hard such dropouts are to catch - its sensor fails intermittently, yet it is logged there under P2579, and the fix is a new sensor plus a 20-second high-idle check. CARB requires the boost-control electronics to be monitored for such faults. P2578, P2580 and P2581 describe faults that persist.
- What you may notice
- Brief power dips that come and go
- Warning lamp that may switch off again
- Turbo speed trace with dropouts or spikes
- Likely causes
- LikelyLoose or spread terminal in the sensor connector
- PossibleWire break that opens only under vibration or heat
- PossibleSpeed sensor A failing when hot
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Usually a job for a workshop.Typical cost: €60 – €500
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.