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Turbocharger Compressor Outlet Air Temperature (Calculated) – Data Valid but Above Normal Range
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Overview
| CODE | REASON | EFFECT |
| Fault Code: 2347 PID: SPN: 2790 FMI: 0/15 LAMP: None SRT: |
Turbocharger Compressor Outlet Air Temperature (Calculated) – Data Valid but Above Normal Range – least severe level. |
Engine power derate. |
 Turbocharger Compressor Outlet Air Temperature
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Circuit Description
The turbocharger compressor outlet air temperature is calculated by the electronic control module (ECM). Turbocharger compressor outlet air temperature is calculated by the ECM based on engine operating conditions such as turbocharger compressor inlet air temperature, barometric pressure, turbocharger speed, engine speed, intake manifold air temperature, and intake manifold pressure.
Component Location
There is not a physical turbocharger compressor outlet air temperature sensor in the system. The turbocharger compressor outlet air temperature is a calculation of the temperature of the air after it is compressed by the turbocharger compressor.
Shop Talk
Possible causes of this fault code include:
- Air intake leaks allowing hot underhood air to enter the intake system
- Faulty intake manifold pressure readings
- High turbocharger speed readings
- Faulty barometric pressure readings
- Stuck turbocharger control valve
- Stuck variable geometry turbocharger.
NOTE: Unless the failure is a failed barometric pressure sensor or intake manifold pressure sensor, this fault code will most likely not
be active with no load in the shop. The engine will most likely need to be loaded to trip this fault code, and to determine if the failure has been found and fixed.
Refer to Troubleshooting Fault Code t05-2347
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