P2EA6Turbocharger Compressor Outlet Temperature Sensor Circuit
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- How the car detects it
- P2EA6 is the general circuit fault of the temperature sensor in the charge pipe between the turbo compressor and the charge air cooler. Squeezing the air heats it a lot; Cummins notes in patent US6401457 that excessive outlet temperature can melt the compressor housing or harm the wheel, and still estimated the value in 2001 because no series sensor lasted there. GM's later patent US11060525 fits a sensor in exactly this duct and trims the boost target in closed loop once a limit is reached; with a sensor fault that function is disabled. No manufacturer documents P2EA6 publicly. It covers missing or intermittent signals that are neither clearly low (P2EC0) nor high (P2EC1); implausible values belong to P2EC2.
- What you may notice
- Check engine lamp on
- Compressor outlet temperature missing or jumping in live data
- Boost limitation at high load possibly less refined
- Likely causes
- LikelyLoose or corroded connector on the charge pipe sensor
- PossibleWire breaking intermittently near the hot turbocharger
- PossibleSensor element failing internally
- RareFaulty input in the engine control module
- 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 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.